Event: A Division

PDF Excel

Opponent	Rating	Result
Steven Mason	118	1 - 0
Martin Pope	0	½ - ½
William O'Rourke	154	0 - 1
Martin Pope	0	1 - 0

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

168 = (272 + 400 * (2 - 1)) / 4)