Event: Division A

PDF Excel

Opponent	Rating	Result
Malcolm R Peacock	184	0 - 1
Paul A Evans	181	½ - ½
Graham W Dobson	171	0 - 1
John G Cooper	165	1 - 0

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

75 = (701 + 400 * (1 - 2)) / 4)