Event: "Hope Valley" blitz

PDF Excel

Opponent	Rating	Result
David WW Gunter	0	0 - 1
Nathaniel Holroyd-Doveton	1714	0 - 1
Chuanxi Wang	1179	0 - 1
George Gledhill	1588	0 - 1
Sophia MacDonald	1333	1 - 0
Connor Fairfield	1207	0 - 1

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

904 = (7021 + 400 * (1 - 5)) / 6)