Event: Hull Club Championship

PDF Excel

Opponent	Rating	Result
Philip A Wood	71	1 - 0
John Scotter	115	½ - ½
Paul A Allison	151	1 - 0
Joe Varley	138	0 - 1

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

219 = (475 + 400 * (2 - 1)) / 4)