Event: Division C

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Opponent Rating Result
Cennydd Bowles 1509 0 - 1
John Dawson 1279 0 - 1
Almas Dohon 1600 0 - 1
John Dawson 1279 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1217 = (5667 + 400 * (1 - 3)) / 4)

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