Event: Club Championship

PDF Excel

Opponent	Rating	Result
Andrew Zigmond	0	0 - 1
Mate Ther	0	0 - 1
Paul R Chambers	0	1 - 0
Richard Tate	0	1 - 0
Peter Gregory	0	1 - 0

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

80 = (0 + 400 * (3 - 2)) / 5)