Event: Individual Quickplay

PDF Excel

Opponent	Rating	Result
Peter McGill	133	0 - 1
Colin G Gregory	97	0 - 1
John L Clarke	82	1 - 0
Jim R Bayford	178	0 - 1
Robert Twigg	0	0 - 1

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

-142 = (490 + 400 * (1 - 4)) / 5)