Event: Silver Rook

PDF Excel

Opponent	Rating	Result
Wilbur Summerson	0	1 - 0
Nigel Redmond	0	½ - ½
Olegs K Kungurovs	0	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

267 = (0 + 400 * (2 - 0)) / 3)