Event: Grand Prix S5

PDF Excel

Opponent	Rating	Result
Simon R Edwards	2054	0 - 1
Owen Frodsham	1050	½ - ½
S Ali Arshad	1167	1 - 0
David Millington	1627	1 - 0

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

1575 = (5898 + 400 * (2 - 1)) / 4)