Event: Ramsgate Summer Swiss

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Opponent Rating Result
Brian W Williamson 93 1 - 0
Ian A Hames 148 0 - 1
Roy J McAloney 87 0 - 1
Terry Green 62 1 - 0
Joshua Vaughan 101 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

18 = (491 + 400 * (2 - 3)) / 5)

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