Event: Div 4 - Athenaeum Cup

PDF Excel

Opponent	Rating	Result
Stefan Lewins	0	0 - 1
Mark Kirkham	1483	0 - 1
Benjamin Nunns	0	0 - 1
Kgosi L Monametsi	0	0 - 1
Sarah L White	0	0 - 1
Andrew M Turnidge	940	1 - 0
Lawrence Heijbroek	0	0 - 1

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

60 = (2423 + 400 * (1 - 6)) / 7)