Event: D&DCL Div 2

PDF Excel

Opponent	Rating	Result
Alan F Downham	162	0 - 1
David J Pickering	139	1 - 0
Mike Allen	122	1 - 0

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

274 = (423 + 400 * (2 - 1)) / 3)