Do your partners stay together?
Each court needs four players. Enter four to twenty-four distinct player labels, one per line. Choose one to twenty-four rounds and enough courts for your available players. Blank lines are ignored and surrounding spaces removed. Add codes when players share a name.
This tool changes doubles partnerships across a session. For partners who stay together, enter each fixed pair as one team in the separate round robin generator. That tool schedules opponents for fixed teams; this page builds two-person teams from individuals.
Keep Randomize draw off to reproduce a draw from the same roster order, courts and rounds. Turning it on changes the starting draw. A new draw can repeat an earlier result. Editing any input clears the current cards, counts and download links.
An eight-player rehearsal
Our invented roster is Player / P1 through Player / P8. No real club is represented. Load Try eight players, keep randomization off, and generate two courts for seven rounds. You get fourteen matches, with everybody playing once per round and nobody resting.
Read the first court: P2 partners P6 against P8 and P1. On the second court, P5 partners P7 against P3 and P4. Each of the eight labels appears once. Court numbers identify places in this schedule, not start times, rankings or serving order.
Follow P1's partners through the seven rounds: P8, P6, P2, P4, P3, P7 and P5. Those are all seven other players. Open Pair counts and find P1 with each of them: As partners is one and As opponents is two. The same counts hold for every unordered pair in this fixture.
The summary reports zero repeated partnerships and twenty-eight repeated opponent pairs. That second number does not mean twenty-eight matches were repeated. There are twenty-eight distinct two-player pairs; each meets as opponents twice, contributing one occurrence beyond its first. Fourteen matches account for the schedule.
We constructed the eight-player pattern separately and checked its full pair counts before using it here. The generator maps your labels onto that pattern for eight players and two courts, cycling it after seven rounds. Asking for fourteen rounds therefore repeats partnerships; the seven-round guarantee does not extend indefinitely.
Who rests when courts are full?
For a second synthetic rehearsal, enter Player / P1 through Player / P10, set two courts and five rounds, and leave randomization off. Eight players play and two rest each round. Across the session, each player has four games and one rest. There are ten matches and fifty player-round assignments.
Find the resting names on every card, then compare them with the Player totals table. A player resting in a round must appear in no court that round. In a deliberately damaged copy, replacing a resting label with a player already on court would keep the displayed name count unchanged while assigning one player twice and omitting another. Compare identities, not just totals.
For this ten-player fixture, CSV has fifty data rows: forty Playing and ten Rest. The eight-player rehearsal has fifty-six Playing rows and no Rest rows. Headers do not count. These different row totals describe player appearances and rests, not match totals.
What do the repeat counts mean?
A partnership is an unordered pair on the same side. An opponent pair is one player on each side; each doubles match contains two partnerships and four opponent pairs. Repeated counts add occurrences beyond each pair's first appearance. Player totals count games and rests separately.
Four players use a three-round partner pattern. Eight players on two courts use the checked seven-round pattern above. Other settings first give places to players with fewer games, then compare 128 candidate arrangements per round, preferring fewer partnership repeats before opponent repeats. This is a bounded heuristic, not a guarantee of the best possible schedule or no repeats whenever a solution exists. Review the resulting counts before using it.
Which rotation did you save?
Check print preview. Print schedule opens your browser's dialog with the rounds, rests and player totals. CSV has Round, Court, Player, Partner, Opponent 1, Opponent 2 and Status columns. Each player has one row per round. Rest rows have no court, partner or opponents. TXT includes the fixtures, player totals and pair counts.
Compare P1's CSV rows with its visible court and partner in all seven rounds, then check the remaining labels. CSV quotes commas and double quotes and adds an apostrophe before text starting with =, +, @ or - for spreadsheet protection. Screen labels and TXT retain the original text. Already downloaded files do not update after edits.
Keep the event rules separate
Players and results stay in this tab. Reloading clears them. They are not included in analytics or sharing URLs. This tool assigns courts and rests within numbered rounds; it does not schedule clock times, balance skill, handle arrivals during play, collect scores, set scoring rules or calculate standings. Agree on those arrangements before starting.