Play-offs — three champions
Mixed play-off
The mixed rankings send the top 2 men and top 2 women to a four-player round-robin — label them M1, M2 (men) and W1, W2 (women). Each man partners each woman once, so it is two matches and everyone plays both:
| Semi match | Team A | Team B |
|---|---|---|
| 1 | M1 + W1 | M2 + W2 |
| 2 | M1 + W2 | M2 + W1 |
Those two matches produce a fresh order of the four — an updated #1/#2 man and #1/#2 woman — scored by the same rules as the season standings, with ties going to the higher season seed.
The final · a balanced mixed pair
The re-ranked order sets a balanced final — the top man plays with the second woman, and the second man with the top woman, so the two teams are as even as possible:
The winning pair are the Mixed champions.
Men's & Women's play-offs — the top-4 finals group
The season ranks individuals (partners rotate all year), so instead of inventing teams, each event ends with a small round-robin that re-seeds the four qualifiers and sets the final pairing. It mirrors how the whole season is played, and it's the classic ATP/WTA Finals shape — a round-robin group, then a final. Champions are a pair, keeping faith with the doubles format.
Who qualifies The top 4 of the season ladder — call them Q1–Q4.
Stage 1 · Round-robin group (the "semis")
The four play everyone-partners-everyone — three doubles matches, each player partnering each of the others exactly once:
| Match | Team A | Team B |
|---|---|---|
| 1 | Q1 + Q2 | Q3 + Q4 |
| 2 | Q1 + Q3 | Q2 + Q4 |
| 3 | Q1 + Q4 | Q2 + Q3 |
Those three matches produce a fresh 1–4 order (R1–R4), scored by the season rules — Points (games won per scheduled match), then win %, then games %, then head-to-head. Any tie is broken in favour of the higher season seed, so the summer's body of work carries into the finals.
Stage 2 · The Final
The round-robin order sets a balanced final pairing — strongest with weakest, so the two best land on opposite sides:
The winning pair are the champions. The higher season seed keeps the traditional #1 courtesy — choice of ends and first serve.
Fully settled: three champion pairs, decided Sep 26–27. All three events: a four-player round-robin group into a balanced paired final — Men's & Women's from the top 4 of their ladder, Mixed from the top 2 men + top 2 women.