Event: 54th Cotswold Minor

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Opponent Rating Result
Siyao Ou 1419 0 - 1
Tommy Burns 1067 1 - 0
Edwin Brown 0 ½ - ½
Jon Hunt 1454 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

885 = (3940 + 400 * (1 - 2)) / 4)

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