Event: Club Championship

PDF Excel

Opponent	Rating	Result
James Allsopp	1669	1 - 0
Brian Turner	1950	½ - ½
Jon Hill	1472	½ - ½
Alex P Nicholls	1536	1 - 0

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

1857 = (6627 + 400 * (2 - 0)) / 4)