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 Tour Finals 2021, Tournament ID 10242):
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