Event: Div2

PDF Excel

Opponent	Rating	Result
Andre Cockburn	105	0 - 1
Kevin J Gallagher	126	0 - 1
David Smith	157	0 - 1
Stephen G Wootton	133	½ - ½

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

-170 = (521 + 400 * (0 - 3)) / 4)