Event: Doncaster Handicap League

PDF Excel

Opponent	Rating	Result
T Ed Sowerby	137	1 - 0
Mick Henshaw	112	½ - ½
Binali Yilmaz	88	0 - 1

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

112 = (337 + 400 * (1 - 1)) / 3)