Event: Brewood Chess Circle Club Championship

PDF Excel

Opponent	Rating	Result
Paul Wright	1893	0 - 1
John Sewell	1201	1 - 0
Andrew Phillips	1510	0 - 1

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

1401 = (4604 + 400 * (1 - 2)) / 3)