Event: Yorkshire Blitz

PDF Excel

Opponent	Rating	Result
Toby Quaite	1276	0 - 1
Piotr Stachowiak	0	0 - 1
Adamjeet Singh	1372	0 - 1
Jatinder Singh	1319	0 - 1
Simon Jones	1411	1 - 0
Steve Collins	1434	0 - 1
Alex Rawse	1471	0 - 1
Nathaniel Mackenzie	1322	0 - 1
Sarah Kaur	0	1 - 0

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

845 = (9605 + 400 * (2 - 7)) / 9)