Event: IM Brown

PDF Excel

Opponent	Rating	Result
Paul Regulski	0	1 - 0
Mick Beavers	78	1 - 0
Stuart M Johnson	117	1 - 0
Martin S Simmonds	135	0 - 1
Tony Pullin	0	1 - 0

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

306 = (330 + 400 * (4 - 1)) / 5)