Event: GP4 - December

PDF Excel

Opponent	Rating	Result
William H Luxton	1631	0 - 1
Oliver Balp	0	0 - 1
David Slidel	1197	0 - 1

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

543 = (2828 + 400 * (0 - 3)) / 3)