Event: 1st Cornwall Online Summer Rapidplay

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Opponent Rating Result
Bryan Jones 1507 ½ - ½
Hugh Brown 1303 0 - 1
David R Jenkins 1523 1 - 0
Lloyd Retallick 2010 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1486 = (6343 + 400 * (1 - 2)) / 4)

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