Event: Division 4

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Opponent Rating Result
George Howe 1500 0 - 1
Hamish Carter 1450 0 - 1
Mark Turner 1316 0 - 1
Adam Lovatt 1441 0 - 1
Andy While 1500 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1041 = (7207 + 400 * (0 - 5)) / 5)

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