Event: Division 4

PDF Excel

Opponent	Rating	Result
Graham J Gibson	111	1 - 0
Nick Spencer	94	1 - 0
George Wade	50	0 - 1
Nick Spencer	94	½ - ½
Daniel McWilliams	114	½ - ½

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

173 = (463 + 400 * (2 - 1)) / 5)