Event: Harmsworth Cup

PDF Excel

Opponent	Rating	Result
Clive J Le Baigue	1477	½ - ½
Colin G Gregory	1529	1 - 0
Leon A Garfield	1377	1 - 0
David Sawyer	1407	1 - 0
James Cole	1636	0 - 1
Asher Sunil	996	1 - 0
Chris Carpenter	1544	0 - 1

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

1538 = (9966 + 400 * (4 - 2)) / 7)