Event: IM Brown

PDF Excel

Opponent	Rating	Result
Alec Grice	138	1 - 0
Paul May	157	1 - 0
Samuel J Playford	122	½ - ½
Trevor Hudson	0	1 - 0
Clive W Davies	159	0 - 1

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

275 = (576 + 400 * (3 - 1)) / 5)