Event: Grand Prix S5

PDF Excel

Opponent	Rating	Result
David A Hallen	1486	0 - 1
S Ali Arshad	1167	0 - 1
Owen Frodsham	1050	1 - 0

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

1101 = (3703 + 400 * (1 - 2)) / 3)