Event: Devon Qualifier

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Opponent Rating Result
Alex Toogood-Johnson 0 0 - 1
Toby Page 1318 0 - 1
George Craik 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

306 = (1318 + 400 * (1 - 2)) / 3)

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