Event: Rapidplay Plate

PDF Excel

Opponent	Rating	Result
Simon N Rogers	0	0 - 1
Simon N Rogers	0	½ - ½
Peter E Jowett	0	0 - 1
Peter E Jowett	0	0 - 1

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

-300 = (0 + 400 * (0 - 3)) / 4)