Event: St Andrews Club Championship

PDF Excel

Opponent	Rating	Result
Lester Jones	1531
David G Mills	0	0 - 1
Ian Scott	1610
Stephen Crow	1899	0 - 0
Giles Dunn	1638
Ian D Major	1844

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

-400 = (0 + 400 * (0 - 1)) / 1)