Event: Division 4

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Opponent Rating Result
Philip Bennett 1531 ½ - ½
Matthew Fox 1498 0 - 1
Roland Robson 1434 ½ - ½
Chris Willett 1378 0 - 1
Nick Wicks 1200 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1328 = (7041 + 400 * (1 - 2)) / 5)

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