Event: Croydon Shield

PDF Excel

Opponent	Rating	Result
Graham DJ Keane	2155	½ - ½
Mike Roberts	2110	1 - 0
Martin G Smith	1949	1 - 0

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

2338 = (6214 + 400 * (2 - 0)) / 3)