Event: John Davis 6200 League

PDF Excel

Opponent	Rating	Result
Ewan Herd	1622	0 - 1
John W Southcote	1556	0 - 1
Rob Haseman	1390	½ - ½

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

1256 = (4568 + 400 * (0 - 2)) / 3)