Use this sheet for a group of upto 14 players competing individualy in a round robin tennis format or upto 28 players competing as teams of two in a round robin. If you have more than 8 teams of two then just go under the 9 players column and pretend the comma between the numbers is a versus symbol and the versus symbol is a comma. For example in the first square under the 9 players column would be team 1 vs team 2, team 3 vs 4, team 5 vs 6 and team 7 vs 8.