Event: Bremridge league

PDF Excel

Opponent	Rating	Result
Graham Bolt	196	½ - ½
Paul A O'Neill	188	½ - ½
Vignesh Ramesh	164	0 - 1

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

49 = (548 + 400 * (0 - 1)) / 3)