ATP - Round Robin Tournaments

How Round Robin Tournaments Work

Most of the tournaments within the ATP tours are Knock Out tournaments - where a player is eliminated if they lose, and progresses to the next round if they win. However, in a few tournaments each year, the tournaments take a different format: Round Robin.

Round Robin refers to a group where all players play against each other in turn.

The Round Robin tournaments that the ATP organise are normally in the following format:

Group Stage:

Group 1: 4 Teams* Group 2: 4 Teams

*Teams can consist of a single player, or two players (in a doubles match)

Each team will play each other once in their respective groups. They will be awarded points for winning matches/sets (This varies for each tournament). The players are then ranked 1-4 in their groups based on these points.

Semi-Finals & Finals:

The Semi-Finals are made up of the top 2 teams in each group. They are decided as follows:

Semi-Final 1: Winner of Group 1 vs Runner-Up in Group 2 Semi Final 2: Winner of Group 2 vs Runner-Up in Group 2

Final: Winner of Semi-Final 1 vs Winner of Semi-Final 2

N.B. There are other formats of Round Robin tournaments, e.g. where there can be 4 groups of 3 teams. In this instance the four group winners go through to the semi finals.

How they Differ to Knockout Tournaments

1 - TOURNAMENTS ENDPOINT RESPONSE- COMPETITION TYPE

Round Robin tournaments have different competitionType field. This is WorldChampionships

This field can be found within the competitions object within the response to the /tournaments and /tournaments/{id} endpoints.

2 - TOURNAMENTS ENDPOINT RESPONSE - COMPETITION OBJECT

For Round Robin tournaments, additional fields can be found within the competitions object within the response to the /tournaments and /tournaments/{id} endpoints

These are as follows:

Field Name

Type

Description

drawPoolSize

int

The number of teams within each group in the Round Robin tournament

drawNumPools

int

The number of groups within the Round Robin tournament

N.B - these fields will not be returned in the response until the draws for the tournament have been released.

3 - DRAW ENDPOINTS RESPONSE- MATCH OBJECT

For Round Robin tournaments, there will be the following additional fields within the match object within the response to the /tournaments/{id}/draws and /competitions/{id}/drawsendpoint

These are as follows:

Field Name

Type

Description

stageType

string

Indicates if this match in the group stage or the knockout stage. Values are group or knockout

groupId

int

If a group stage match then this shows the id of the group the match is in

Additionally, the round Field will return null for Round Robin tournaments in the above endpoints.

Below are two (limited to 100 lines each for this page) example responses (/tournaments/{id} and /tournaments/{id}/draws from a round robin tournament (ATP United Cup 2024, Tournament ID 12469):

{
    "city": "Perth-Sydney",
    "location": "Australia",
    "endDate": "2025-01-05",
    "surface": "Hard",
    "identifier": 12469,
    "year": 2025,
    "numberOfMatchesBookedToday": 0,
    "numberOfMatches": 54,
    "eventsResource": "/tennis/tournaments/12469/events",
    "sport": "Tennis",
    "countryCode": "AUS",
    "status": "Confirmed",
    "comment": "OOP update:<br>12 match updates",
    "environment": "Outdoor",
    "tournamentName": "United Cup",
    "eventsSummary": {
        "2024-12-31": {
            "MX": 2,
            "LS": 2,
            "MS": 2
        },
        "2024-12-27": {
            "LS": 2,
            "MX": 2,
            "MS": 2
        },
        "2024-12-29": {
            "MX": 4,
            "LS": 4,
            "MS": 4
        },
        "2024-12-28": {
            "MX": 4,
            "LS": 4,
            "MS": 4
        },
        "2024-12-30": {
            "LS": 4,
            "MS": 4,
            "MX": 4
        },
        "2025-01-01": {
            "MS": 2,
            "LS": 2,
            "MX": 2
        }
    },
    "utcOffset": 10.0,
    "startDate": "2024-12-27",
    "venues": [],
    "competitions": [
        {
            "organisation": "ATP",
            "externalId": "9900",
            "endDate": "2025-01-05",
            "competitionType": "UnitedCup",
            "singlesDrawSize": 25,
            "singlesQualifyingDrawSize": 0,
            "drawPoolSize": 4,
            "doublesDrawSize": 18,
            "doublesQualifyingDrawSize": 0,
            "competitionId": "2025-9900",
            "licencingProperty": "TENNIS_MISCELLANEOUS",
            "startDate": "2024-12-27",
            "drawNumPools": 6
        }
    ],
    "comments": [
        "OOP update:<br>12 match updates"
    ]
}

United Cup draws:

{
    "LS": {
        "competitionType": "LS",
        "entrySize": 25,
        "numberOfPools": 6,
        "competitionId": "2025-9900",
        "matches": [
            {
                "estimatedTime": "17:00+08:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "USA",
                            "firstName": "Coco",
                            "id": "328560",
                            "lastName": "Gauff"
                        },
                        "entryType": "Standard",
                        "seed": 1
                    }
                },
                "eventId": "LS112",
                "groupId": 1,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CAN",
                            "firstName": "Leylah",
                            "id": "326735",
                            "lastName": "Fernandez"
                        },
                        "entryType": "Standard",
                        "seed": 7
                    }
                },
                "estimatedDate": "2024-12-29",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "USA",
                            "firstName": "Coco",
                            "id": "328560",
                            "lastName": "Gauff"
                        },
                        "entryType": "Standard",
                        "seed": 1
                    }
                },
                "eventId": "LS122",
                "groupId": 1,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CRO",
                            "firstName": "Donna",
                            "id": "318516",
                            "lastName": "Vekic"
                        },
                        "entryType": "Standard",
                        "seed": 18
                    }
                },
                "estimatedDate": "2024-12-31",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+08:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CAN",
                            "firstName": "Leylah",
                            "id": "326735",
                            "lastName": "Fernandez"
                        },
                        "entryType": "Standard",
                        "seed": 7
                    }
                },
                "eventId": "LS132",
                "groupId": 1,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CRO",
                            "firstName": "Donna",
                            "id": "318516",
                            "lastName": "Vekic"
                        },
                        "entryType": "Standard",
                        "seed": 18
                    }
                },
                "estimatedDate": "2024-12-28",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "POL",
                            "firstName": "Iga",
                            "id": "326408",
                            "lastName": "Swiatek"
                        },
                        "entryType": "Standard",
                        "seed": 2
                    }
                },
                "eventId": "LS212",
                "groupId": 2,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CZE",
                            "firstName": "Karolina",
                            "id": "322191",
                            "lastName": "Muchova"
                        },
                        "entryType": "Standard",
                        "seed": 8
                    }
                },
                "estimatedDate": "2025-01-01",
                "stageType": "Group"
            },
            {
                "estimatedTime": "17:30+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "POL",
                            "firstName": "Iga",
                            "id": "326408",
                            "lastName": "Swiatek"
                        },
                        "entryType": "Standard",
                        "seed": 2
                    }
                },
                "eventId": "LS222",
                "groupId": 2,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "NOR",
                            "firstName": "Malene",
                            "id": "323055",
                            "lastName": "Helgo"
                        },
                        "entryType": "Standard",
                        "seed": 15
                    }
                },
                "estimatedDate": "2024-12-30",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:30+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CZE",
                            "firstName": "Karolina",
                            "id": "322191",
                            "lastName": "Muchova"
                        },
                        "entryType": "Standard",
                        "seed": 8
                    }
                },
                "eventId": "LS232",
                "groupId": 2,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "NOR",
                            "firstName": "Malene",
                            "id": "323055",
                            "lastName": "Helgo"
                        },
                        "entryType": "Standard",
                        "seed": 15
                    }
                },
                "estimatedDate": "2024-12-29",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "GRE",
                            "firstName": "Maria",
                            "id": "318312",
                            "lastName": "Sakkari"
                        },
                        "entryType": "Standard",
                        "seed": 3
                    }
                },
                "eventId": "LS312",
                "groupId": 3,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "KAZ",
                            "firstName": "Elena",
                            "id": "324166",
                            "lastName": "Rybakina"
                        },
                        "entryType": "Standard",
                        "seed": 9
                    }
                },
                "estimatedDate": "2024-12-30",
                "stageType": "Group"
            },
            {
                "estimatedTime": "17:00+08:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "GRE",
                            "firstName": "Maria",
                            "id": "318312",
                            "lastName": "Sakkari"
                        },
                        "entryType": "Standard",
                        "seed": 3
                    }
                },
                "eventId": "LS322",
                "groupId": 3,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "ESP",
                            "firstName": "Jessica",
                            "id": "328139",
                            "lastName": "Bouzas Maneiro"
                        },
                        "entryType": "Standard",
                        "seed": 14
                    }
                },
                "estimatedDate": "2024-12-28",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "KAZ",
                            "firstName": "Elena",
                            "id": "324166",
                            "lastName": "Rybakina"
                        },
                        "entryType": "Standard",
                        "seed": 9
                    }
                },
                "eventId": "LS332",
                "groupId": 3,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "ESP",
                            "firstName": "Jessica",
                            "id": "328139",
                            "lastName": "Bouzas Maneiro"
                        },
                        "entryType": "Standard",
                        "seed": 14
                    }
                },
                "estimatedDate": "2024-12-27",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "ITA",
                            "firstName": "Jasmine",
                            "id": "319280",
                            "lastName": "Paolini"
                        },
                        "entryType": "Standard",
                        "seed": 4
                    }
                },
                "eventId": "LS412",
                "groupId": 4,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "FRA",
                            "firstName": "Diane",
                            "id": "327077",
                            "lastName": "Parry"
                        },
                        "entryType": "Standard",
                        "seed": 10
                    }
                },
                "estimatedDate": "2024-12-31",
                "stageType": "Group"
            },
            {
                "estimatedTime": "19:00+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "ITA",
                            "firstName": "Jasmine",
                            "id": "319280",
                            "lastName": "Paolini"
                        },
                        "entryType": "Standard",
                        "seed": 4
                    }
                },
                "eventId": "LS422",
                "groupId": 4,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "SUI",
                            "firstName": "Belinda",
                            "id": "319001",
                            "lastName": "Bencic"
                        },
                        "entryType": "Standard",
                        "seed": 16
                    }
                },
                "estimatedDate": "2024-12-29",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:30+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "FRA",
                            "firstName": "Diane",
                            "id": "327077",
                            "lastName": "Parry"
                        },
                        "entryType": "Standard",
                        "seed": 10
                    }
                },
                "eventId": "LS432",
                "groupId": 4,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "SUI",
                            "firstName": "Belinda",
                            "id": "319001",
                            "lastName": "Bencic"
                        },
                        "entryType": "Standard",
                        "seed": 16
                    }
                },
                "estimatedDate": "2024-12-28",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CHN",
                            "firstName": "Qinwen",
                            "id": "328120",
                            "lastName": "Zheng"
                        },
                        "entryType": "Standard",
                        "seed": 5
                    }
                },
                "eventId": "LS512",
                "groupId": 5,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "GER",
                            "firstName": "Laura",
                            "id": "310926",
                            "lastName": "Siegemund"
                        },
                        "entryType": "Standard",
                        "seed": 11
                    }
                },
                "estimatedDate": "2024-12-30",
                "stageType": "Group"
            },
            {
                "estimatedTime": "17:00+08:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CHN",
                            "firstName": "Qinwen",
                            "id": "328120",
                            "lastName": "Zheng"
                        },
                        "entryType": "Standard",
                        "seed": 5
                    }
                },
                "eventId": "LS522",
                "groupId": 5,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "BRA",
                            "firstName": "Beatriz",
                            "id": "318176",
                            "lastName": "Haddad Maia"
                        },
                        "entryType": "Standard",
                        "seed": 13
                    }
                },
                "estimatedDate": "2024-12-27",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+08:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "GER",
                            "firstName": "Laura",
                            "id": "310926",
                            "lastName": "Siegemund"
                        },
                        "entryType": "Standard",
                        "seed": 11
                    }
                },
                "eventId": "LS532",
                "groupId": 5,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "BRA",
                            "firstName": "Beatriz",
                            "id": "318176",
                            "lastName": "Haddad Maia"
                        },
                        "entryType": "Standard",
                        "seed": 13
                    }
                },
                "estimatedDate": "2024-12-29",
                "stageType": "Group"
            },
            {
                "estimatedTime": "17:30+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "GBR",
                            "firstName": "Katie",
                            "id": "319125",
                            "lastName": "Boulter"
                        },
                        "entryType": "Standard",
                        "seed": 6
                    }
                },
                "eventId": "LS612",
                "groupId": 6,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "AUS",
                            "firstName": "Olivia",
                            "id": "326653",
                            "lastName": "Gadecki"
                        },
                        "entryType": "Standard",
                        "seed": 12
                    }
                },
                "estimatedDate": "2025-01-01",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:30+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "GBR",
                            "firstName": "Katie",
                            "id": "319125",
                            "lastName": "Boulter"
                        },
                        "entryType": "Standard",
                        "seed": 6
                    }
                },
                "eventId": "LS622",
                "groupId": 6,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "ARG",
                            "firstName": "Nadia",
                            "id": "319112",
                            "lastName": "Podoroska"
                        },
                        "entryType": "Standard",
                        "seed": 17
                    }
                },
                "estimatedDate": "2024-12-30",
                "stageType": "Group"
            },
            {
                "estimatedTime": "17:30+11:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "AUS",
                            "firstName": "Olivia",
                            "id": "326653",
                            "lastName": "Gadecki"
                        },
                        "entryType": "Standard",
                        "seed": 12
                    }
                },
                "eventId": "LS632",
                "groupId": 6,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "ARG",
                            "firstName": "Nadia",
                            "id": "319112",
                            "lastName": "Podoroska"
                        },
                        "entryType": "Standard",
                        "seed": 17
                    }
                },
                "estimatedDate": "2024-12-28",
                "stageType": "Group"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS012",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS022",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS032",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS042",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS052",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS062",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "LS072",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            }
        ],
        "drawSize": 25
    },
    "MS": {
        "competitionType": "MS",
        "entrySize": 25,
        "numberOfPools": 6,
        "competitionId": "2025-9900",
        "matches": [
            {
                "estimatedTime": "10:00+10:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "USA",
                            "firstName": "Taylor",
                            "id": "FB98",
                            "lastName": "Fritz"
                        },
                        "entryType": "Standard",
                        "seed": 1
                    }
                },
                "eventId": "MS111",
                "groupId": 1,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CAN",
                            "firstName": "Felix",
                            "id": "AG37",
                            "lastName": "Auger-Aliassime"
                        },
                        "entryType": "Standard",
                        "seed": 7
                    }
                },
                "estimatedDate": "2024-12-29",
                "stageType": "Group"
            },
            {
                "estimatedTime": "10:00+08:00",
                "teamA": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "USA",
                            "firstName": "Taylor",
                            "id": "FB98",
                            "lastName": "Fritz"
                        },
                        "entryType": "Standard",
                        "seed": 1
                    }
                },
                "eventId": "MS121",
                "groupId": 1,
                "round": null,
                "teamB": {
                    "status": "KnownTennisTeam",
                    "team": {
                        "player1": {
                            "country": "CRO",
                            "firstName": "Borna",
                            "id": "CG80",
                            "lastName": "Coric"
                        },
                        "entryType": "Standard",
                        "seed": 18
                    }
                },
                "estimatedDate": "2024-12-31",
                "stageType": "Group"
            },
            {
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                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "MX063",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            },
            {
                "teamA": {
                    "status": "UnknownTennisTeam"
                },
                "eventId": "MX073",
                "round": null,
                "teamB": {
                    "status": "UnknownTennisTeam"
                },
                "stageType": "Knockout"
            }
        ],
        "drawSize": 25
    }
}
```

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