Event: Bill Lumley Rapidplay

PDF Excel

Opponent	Rating	Result
Richard Caufield	0	1 - 0
Dean Hepworth	109	½ - ½
John Hill	0	1 - 0

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

303 = (109 + 400 * (2 - 0)) / 3)