Event: Bill Lumley Rapidplay

PDF Excel

Opponent	Rating	Result
Simon Skinner	116	1 - 0
Nigel R Hepworth	131	½ - ½
David J Tooley	149	1 - 0

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

399 = (396 + 400 * (2 - 0)) / 3)