Event: Deric Cox Trophy

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Opponent Rating Result
Cristiano Marchettini 1416 0 - 1
Harry Gulliver 1475 0 - 1
Stephen Roberts 1075 1 - 0
Olexandra Andronova 1300 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1317 = (5266 + 400 * (2 - 2)) / 4)

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