Event: Woodhouse Cup

PDF Excel

Opponent	Rating	Result
Julian R Chapman	187	0 - 1
Peter Braham	148	0 - 1
Richard M Cowan	173	½ - ½
Peong Wei Jie	181	0 - 1
Chris N Ross	205	½ - ½

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

-61 = (894 + 400 * (0 - 3)) / 5)