Event: Good Friday Rapidplay

PDF Excel

Opponent	Rating	Result
Jack T Smith	1407	1 - 0
Steve Whatmore	1777	0 - 1
Darren M Chell	0	1 - 0
Andrew Mowat	1699	½ - ½

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

1321 = (4883 + 400 * (2 - 1)) / 4)