Event: 54th Cotswold Minor

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Opponent	Rating	Result
Jon Hunt	1454	0 - 1
Yicheng Ding	1415	0 - 1
Vaidy Ramanathan	1195	0 - 1
John R Sellen	1447	0 - 1
Steve Martin	1458	0 - 1

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

994 = (6969 + 400 * (0 - 5)) / 5)