Event: County Championship

PDF Excel

Opponent	Rating	Result
Denis Georgiou	0	1 - 0
Craig M Whitfield	0	0 - 1
Robert K Taylor	0	0 - 1
Eric Gibbon	0	0 - 1
Jason M Dilley	0	½ - ½

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

-160 = (0 + 400 * (1 - 3)) / 5)