
If further alternates are needed, these players are selected by the ATP. In the event of this totaling more than 8 players, those lower down in the selection order become the alternates.

The top two of each group advanced to semifinals, with the winner of each group playing the runner-up of the other group. ATP rank after the last ATP Tour tournament of the year.Ĭriteria 4–6 were used only in the event of a three-way tie if one of these criteria decided a winner or loser among the three, the remaining two would have been ranked by head-to-head result.Head-to-head result between tied players/teams.Most matches played (e.g., a 2–1 record beats a 2–0 record).In deciding placement within a group, the following criteria were used, in order: All doubles matches were two sets (no ad) and a Match Tie-break. All singles matches, including the final, were best of three sets with tie-breaks in each set including the third. The eight seeds were determined by the ATP Rankings and ATP Doubles Team Rankings on the Monday after the last ATP Tour tournament of the calendar year. The ATP Finals group stage had a round-robin format, with eight players/teams divided into two groups of four and each player/team in a group playing the other three in the group. An undefeated champion would earn the maximum 1,500 points, and $2,316,000 in singles or $429,000 in doubles.RR is the points or prize money won in the Round Robin Stage.

The ATP Finals currently (2021) rewards the following points and prize money, per victory: Stage Rajeev Ram / Joe Salisbury, 6–4, 7–6 (7–0) Day-by-day summaries Session

Pierre-Hugues Herbert / Nicolas Mahut def.
