Event: Club Championship

PDF Excel

Opponent	Rating	Result
A Carrigan	94	½ - ½
Brian D Corner	0	1 - 0
John Grasham	134	0 - 1
Philip May	98	1 - 0
Paul May	157	0 - 1

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

97 = (483 + 400 * (2 - 2)) / 5)