Event: Division 5

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Opponent Rating Result
James Picton 1605 0 - 1
Curtis James-Britton 1471 ½ - ½
Minxuan Chen 1747 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1474 = (4823 + 400 * (0 - 1)) / 3)

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