Event: Bill Lumley Rapidplay

PDF Excel

Opponent	Rating	Result
Nick Sykes	152	1 - 0
Granville Boot	149	½ - ½
Simon Skinner	116	1 - 0

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

406 = (417 + 400 * (2 - 0)) / 3)