Event: Five Counties Div 3

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Opponent	Rating	Result
Mayun Patel	855	1 - 0
Ernest Jardzioch	1124	1 - 0
Scarlet Watson	1118	0 - 1
Bruno Connolly-Eich	1120	0 - 1
Nathaniel Schofield	970	0 - 1
Freya Chapman	0	1 - 0
Arth Manoj Kumar	0	1 - 0
Ansh Patange	818	0 - 1
Mayun Patel	850	½ - ½
Lianna Shilani Tousi	0	1 - 0
Siddharth Nayak	1305	1 - 0

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

815 = (8160 + 400 * (6 - 4)) / 11)