Table Tennis Round Robin Tournament - Help!

[ollitrop]

I am trying to get a Round Robin schedule and Scoresheet for a Table Tennis Tournament we are doing at work.

I know Round Robin lets each player play eachother, which is exactly what we want.

We only have one table tennis table and 40 players.

[wbport]

With only one table, you might be better off with a knockout or double elimination event.  However to create round robin event:

• Assign everyone (at random) a pairing number.
• Subtract everyone's pairing number from 41 to get their first opponent.
• Except for 40 (the "ghost" player), add 1 to each person's previous round opponent to get their next round player. After meeting 39, their next opponent is 1.  When they get to their own number, they play 40; then meet the player numbered directly above them.
• Player 40 meets whoever is free.  Would meet 1, 21, 2, 22, 3 ... 19, 39, 20 in that order.

Note you will have 20 games in each round.