Who advances when three players in a tennis group all win two matches?

It depends on the regulations. Under ITF Juniors Regulations 2026 (Reg. 57) you compare sets percentage, then games percentage. Under the PZT tournament regulations 2025 (IV.7.4) you compare set difference, then game difference. In both, if the step leaves exactly two players level, their head-to-head match decides.

Is it sets percentage or set difference?

ITF junior events use percentage: sets won divided by sets played. PZT tournaments use the difference: sets won minus sets lost. Most of the time both give the same order. In the worked example on this page they give different group winners, so check which your entry form or tournament rules name.

How does a match tie-break count in the group table?

Reg. 57 counts a match tie-break won as 1 set and 1 game won, and lost as 1 set and 1 game lost. A 10-8 match tie-break therefore counts as 1-0 in games, not 10-8. The PZT regulations (IV.7.4, note 3) leave it out of the games count; the calculator still adds the one game, so under PZT the game difference can be off by one.

What happens to the table if a player retires or gives a walkover?

Under Reg. 57 a retirement counts as a played match, so its result stays in. A walkover is treated differently: all matches of the player who gave it are left out of the calculation, including the ones they did play.

What if the players are still level after games?

Under ITF rules, the ITF Junior ranking used for seeding decides, then the WTN (with at least 50% confidence), then a draw of lots. Under PZT rules it goes straight to a draw of lots. The calculator shows the tie and leaves that step to the referee.

Does a JudgeMate tennis tournament rank groups the same way?

Yes, if the organizer picks the same rule set. In the draw format step a tennis group table follows ITF Juniors Reg. 57, the default for a new tennis draw, or PZT IV.7.4, and it is computed by the same code as this calculator. Games count when every played group match came from the live scoreboard. A tie that the rule set leaves to ranking, WTN or lots is settled by the organizer by hand.

Tennis Round Robin Standings Calculator

Group order from set and game scores, under ITF Juniors or PZT tie rules

In a tennis round robin, the player with most wins tops the group. If two players are level, their head-to-head match decides. If three are level, the rules differ. ITF Juniors Regulations 2026 (Reg. 57) compare sets percentage, then games percentage. The Polish Tennis Association (PZT) regulations compare set difference, then game difference. The same scores can produce a different group winner, so enter your results, pick the rule set your tournament uses, and the calculator returns the order with each player's sets, games and points, and the rule that decided each place.

Rule set

EntrantsSets to win a match

Entrant AEntrant BEntrant CEntrant D

Results

Leave a match empty if it has not been played.

A–B
Set 1
Set 2
Set 3
Walkover
A–C
Set 1
Set 2
Set 3
Walkover
A–D
Set 1
Set 2
Set 3
Walkover
B–C
Set 1
Set 2
Set 3
Walkover
B–D
Set 1
Set 2
Set 3
Walkover
C–D
Set 1
Set 2
Set 3
Walkover

Table

#	Entrant	Pts	P	W	L	Sets	Games	Why this place
1	B	2	3	2	1	4:2	31:19	percentage of games won, all matches (Reg. 57.3b)
2	A	2	3	2	1	4:2	33:21	percentage of games won, all matches (Reg. 57.3b)
3	C	2	3	2	1	4:2	31:28	percentage of games won, all matches (Reg. 57.3b)
4	D	0	3	0	3	0:6	9:36	match points

Learn more

Tennis tournament formats explained: which one to choose

Knockout, round robin or groups plus a bracket: how many matches each format costs, how long it takes on your courts, and which one fits 8, 16, 24 or 32 players.

Tennis competition rules

Formats, judging, technology, equipment — the full competition reference.

Tennis glossary

A tennis glossary of 47 terms: the scoring vocabulary from love to match tie-break, the shots, and the tournament language of draws, seeds, byes and walkovers.

Two rule sets, step by step

Both rule sets start the same way and part company at the three-way tie.

Step	ITF Juniors Regulations 2026, Reg. 57	PZT tournament regulations 2025, IV.7.4
1	Most wins	Most wins
2	Two players level: their head-to-head result	Two players level: their head-to-head match
3	Three or more level: sets percentage	Three or more level: set difference
4	Games percentage	Game difference
5	ITF Junior ranking used for seeding, then WTN (at least 50% confidence), then a draw of lots	Draw of lots

Sets percentage is sets won divided by sets played. Set difference is sets won minus sets lost. Games work the same way. The two measures usually agree, and they split apart when one player has played more games than another: a narrow 7-6 loss adds a lot of games to the total and very little to the difference.

The ITF rule has a count-back. If a percentage separates all the tied players, they are ranked by it and the head-to-head record no longer matters. If it leaves exactly two level, their match decides. PZT runs set difference, then game difference, and when that singles out one player the remaining two are separated by their head-to-head match.

What to enter

Players: a group of three to six. Every pair plays once.
Sets: games per set, for example 6-4 or 7-6. A set decided by a tie-break goes in as 7-6.
Match tie-break: if a deciding match tie-break replaced the third set, enter it as a 1-0 set for the winner. Reg. 57 counts a match tie-break won as 1 set and 1 game won, and lost as 1 set and 1 game lost. PZT IV.7.4 (note 3) leaves the match tie-break out of the games count. The calculator still adds that one game under PZT, so a PZT game difference can be off by one. ITF J30 and J60 groups are played this way: "best of two Tie-Break sets and a Match Tie-Break (10 point) in place of a third set" (Reg. 35).
Retirement: the form has no retirement option and accepts a match only once one player has the required number of sets. Under Reg. 57 a retired match counts as played, so enter it as a win for the opponent and complete the score as the referee records it.
Walkover: under Reg. 57 the matches of a player who gave a walkover are not counted at all, so that player's other results also leave the calculation.

Worked example: one group, two winners

Group of four. Six matches:

A beat B 6-4 6-3
C beat A 7-5 6-4
A beat D 6-1 6-0
B beat C 6-2 6-4
B beat D 6-0 6-1
C beat D 6-3 6-4

A, B and C each won two matches and each finished with sets 4-2. The games decide.

Player	Wins	Sets	Games	Games %	Game difference
A	2	4-2	33-21	61.11%	+12
B	2	4-2	31-19	62.00%	+12
C	2	4-2	31-28	52.54%	+3
D	0	0-6	9-36	20.00%	-27

ITF Reg. 57: sets percentage is 66.67% for all three. Games percentage separates every one of them, so head-to-head plays no part. Order: B, A, C, D.
PZT IV.7.4: set difference is +2 for all three. Game difference puts C third, A and B stay level on +12, and A beat B. Order: A, B, C, D.

B played four fewer games than A and lost the head-to-head, yet tops the group under the ITF rule. If the top player goes into the main draw as a seed, the choice of rule set decides who gets it.

How a JudgeMate tennis draw ranks the group

A JudgeMate tennis draw ranks each group with the same code as this calculator. In the draw format step the organizer picks the rule set for the group tables: ITF Juniors Reg. 57, which a new tennis draw starts with, or PZT IV.7.4. Both give 1 point for a win and 0 for a loss and follow the steps in the table above, count-back included. For the worked example, a draw on ITF gives B, A, C, D and a draw on PZT gives A, B, C, D.

The count-back matters in this group: A beat B 7-6 7-6, C beat A 6-2 6-3, A beat D 6-7 6-4 6-4, B beat C 6-1 4-6 6-2, B beat D 6-2 6-1, C beat D 6-4 6-4. C has sets 5-2, A and B both 4-3. Sets put C first, the steps start again for A and B, and A beat B: C, A, B, D under both rule sets. Going straight on to games would put B (40-26) ahead of A (37-39).

What to know before the event:

Walkovers. Under ITF the matches of a player who gave a walkover leave the table, as Reg. 57 requires. Under PZT they stay.
Games need every played result. A result from a JudgeMate live scoreboard carries the games. A result typed into the match sheet carries the set count only, and one such result switches off the games step for the group. Walkovers do not.
Match tie-break. The scoreboard stores it in the set history as a 1-0 set, which is the Reg. 57 count. Under PZT that one game still counts, although note 3 of IV.7.4 leaves it out.
No ranking, WTN or lots. If a tie still decides who goes through when the group stage ends, the match day console marks the tie and the organizer puts one of them first by hand.
Custom points. The organizer sets the match points; the fields default to the ITF values of 1 and 0. Ties go to a head-to-head mini-table, then set ratio and games ratio, without the count-back.

To run the event, create a tennis tournament, choose groups plus knockout and pick the rule set: one to four groups, one or two players through from each, plus up to two of the best players from the next place down. Score matches on the tennis live scoreboard so games reach the table. The tennis tournament formats guide compares groups with a straight knockout.

What this calculator does not do

No ranking or WTN step. When percentages or differences cannot separate players, the calculator stops and shows the tie. The ITF ranking used for seeding, the WTN and the draw of lots are the referee's call.
One group at a time. Comparing runners-up across groups needs each group's table first.
No team ties. A club match of several singles and doubles counts as one result in a team competition, and that is a different table.
Not an official result. The tournament referee publishes the standings. Use the calculator to check a sheet, plan the knockout draw, or answer a player who asks why they finished third with two wins.