Event: Rated club games

PDF Excel

Opponent	Rating	Result
Roy A Ludlow	1657	0 - 1
David L Weston	1708	0 - 1
Roy A Ludlow	1638	0 - 1

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

1268 = (5003 + 400 * (0 - 3)) / 3)