Event: Watkinsons League

PDF Excel

Opponent	Rating	Result
Granville Boot	1796	0 - 1
Gerald Cuaresma	2000	0 - 1
Dave Colledge	1731	1 - 0

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

1709 = (5527 + 400 * (1 - 2)) / 3)