Event: All Play All

PDF Excel

Opponent	Rating	Result
Barry Perchard	1504	1 - 0
Robin J Cubbon	1105	1 - 0
Anthony Stenton	1828	1 - 0
Michael Williams	1389	1 - 0
William F Harris	1591	½ - ½
Clifford H Walker	1497	0 - 1
Patrick Dillon	1661	½ - ½

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

1682 = (10575 + 400 * (4 - 1)) / 7)