Event: St Andrews Club Championship

PDF Excel

Opponent	Rating	Result
Stephen Crow	150	0 - 1
Stephen Garner	88	½ - ½
N Charles Clayton	99	½ - ½
Steve King	109	½ - ½

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

12 = (446 + 400 * (0 - 1)) / 4)