Event: 400 League

PDF Excel

Opponent	Rating	Result
Harry Feather	117	0 - 1
David Hill	90	1 - 0
Colin Creighton	101	1 - 0
Mick Wombell	116	0 - 1
Mick Wombell	116	1 - 0
Steven Harrison	94	1 - 0
Robert Black	117	½ - ½
David J Norris	80	1 - 0

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

254 = (831 + 400 * (5 - 2)) / 8)