Event: Division 3 West

PDF Excel

Opponent	Rating	Result
Barry Thornley	107	1 - 0
Antony Austin	81	0 - 1
Alex Keen	92	0 - 1
David J Wood	89	½ - ½

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

-8 = (369 + 400 * (1 - 2)) / 4)