Event: Mamhead

PDF Excel

Opponent	Rating	Result
Alan W Brusey	181	0 - 1
Michael H Stinton-Brownbridge	160	1 - 0
Steve Clarke	139	1 - 0

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

293 = (480 + 400 * (2 - 1)) / 3)