Event: Haslemere Trophy

PDF Excel

Opponent	Rating	Result
Colin Purdon	2148	0 - 1
Jasper Mansfield	0	1 - 0
Colin Purdon	2148	0 - 1
Jasper Mansfield	0	0 - 1

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

874 = (4296 + 400 * (1 - 3)) / 4)