Event: Summer

PDF Excel

Opponent	Rating	Result
Richard J Smith	0	1 - 0
Graham L Jones	0	1 - 0
Mark Paul	0	0 - 0
Peter J Worthington	0	0 - 1
David Edwards	0	0 - 1

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

0 = (0 + 400 * (2 - 2)) / 4)