Event: Portsmouth Club Championship

PDF Excel

Opponent	Rating	Result
David C Goddard	1664	1 - 0
Paul Eyles	1413	1 - 0
Ekramul Basher	0	1 - 0

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

1426 = (3077 + 400 * (3 - 0)) / 3)