Event: Club Championship

PDF Excel

Opponent	Rating	Result
Paul A Chaplin	1469	0 - 1
Marwan Khateb	0	1 - 0
Githma Madukalpa	1782	0 - 1

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

950 = (3251 + 400 * (1 - 2)) / 3)