Round robin generator

What you get

A full fixture list — every pair, once — spread across however many courts you have. A league table that rebuilds itself every time a result goes in. And a projector view that shows the table to the hall without anybody having to stand at a laptop.

The numbers above are for six teams; change the count in the wizard and everything re-quotes. A round robin is the one format where the size of the day grows fast: doubling the field roughly quadruples the matches.

The table is rebuilt, not accumulated

Standings are recomputed from scratch after every result rather than added up as they arrive. That sounds like the slower way to do it, and it is, but incremental accumulation is exactly where a corrected score produces a table that no longer matches its own fixtures. Fix a score an hour later and the table lands where it would have been if the score had been right the first time.

Ties are explained, not just broken

Two teams level on points are separated by head-to-head first, then score difference, then points scored — and when a table needs more than points to rank, the criteria that actually did the separating are printed underneath it.

Head-to-head is computed among the tied teams only, from the fixtures those teams played against each other, which is why ranking is recursive rather than one comparator chain. That sentence under the table is the difference between a table and an argument in a sports hall.

Odd numbers of teams

An odd field means somebody sits out every round, and the schedule handles it — each team gets one bye across the tournament and the fixture count is unaffected, because a bye is not a match. The round count goes up by one compared to an even field of the same size.

Common questions