Event: U1650 Cup

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Opponent Rating Result
Alex Jacobs 1454 ½ - ½
Daniel Such 1567 ½ - ½
Martyn Colebrook 1515 ½ - ½
Jemima Bostock 1000 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1484 = (5536 + 400 * (1 - 0)) / 4)

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