Event: St Andrews Club Championship

PDF Excel

Opponent	Rating	Result
Giles Dunn	150	0 - 1
Peter Morgan	47	1 - 0
Edward Stamp	94	½ - ½
N Charles Clayton	97	½ - ½
Bryan Wilson	101	½ - ½

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

98 = (489 + 400 * (1 - 1)) / 5)