Event: Division A

PDF Excel

Opponent	Rating	Result
Peter E Jowett	187	0 - 1
Malcolm R Peacock	184	½ - ½
Tom Leah	171	0 - 1

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

-86 = (542 + 400 * (0 - 2)) / 3)