Event: Division Two

PDF Excel

Opponent	Rating	Result
Graham H Lamb	135	½ - ½
Fred S Dickson	135	½ - ½
Brian Whitehouse	131	1 - 0(def)

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

135 = (270 + 400 * (0 - 0)) / 2)