Event: Rapidplay - Under 7000

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Opponent Rating Result
Anthony Tatam 1482 0 - 1
Trevor Leyland 1749 1 - 0
Anthony Tatam 1482 1 - 0
Trevor Leyland 1749 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1816 = (6462 + 400 * (3 - 1)) / 4)

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