Event: Division 3

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Opponent Rating Result
Matthew Perchard 1472 0 - 1
Harvey Garfield 1518 ½ - ½
Jonathan Mather 1431 0 - 1
Jeremy JA Turner 1435 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1164 = (5856 + 400 * (0 - 3)) / 4)

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