Event: Wharfedale u16s League

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Opponent	Rating	Result
Cora Wainwright	1162	0 - 1
Ben Tyler	609	1 - 0
Rowan Thomas	610	1 - 0
Louis Needham	1407	0 - 1
Muhammad Turgunboev	870	0 - 1
Thomas Hewitt	987	1 - 0
Sevan Chotai	1272	0 - 1
Luca Jones	1013	0 - 1
Dan Yoshino-Bunting	1006	0 - 1

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

860 = (8936 + 400 * (3 - 6)) / 9)