Event: Grand Prix S5

PDF Excel

Opponent	Rating	Result
Rowan J Webb	1375	0 - 1
Colin Abell	1509	½ - ½
David E Shiers	1649	1 - 0
Benjamin R Shiers	1450	0 - 1

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

1396 = (5983 + 400 * (1 - 2)) / 4)