Event: Derby Long play

PDF Excel

Opponent	Rating	Result
Chris Sharp	100	1 - 0
Stephen Lamont	143	0 - 1
Craig Harrison	109	1 - 0
Andre Cockburn	119	1 - 0
David Williams	162	0 - 1

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

207 = (633 + 400 * (3 - 2)) / 5)