Event: Open Division 1 A

PDF Excel

Opponent	Rating	Result
Philip J Horspool	0	0 - 1
Brian G Whyte	0	0 - 1
Thomas Villiers	0	0 - 1
Peter M Gayson	0	0 - 1
Nigel Birtwistle	0	½ - ½

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

-320 = (0 + 400 * (0 - 4)) / 5)