Event: Division 3

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Opponent Rating Result
Ross Murphy 1706 ½ - ½
Stephen Mason 1749 1 - 0
Danny Flintoft 0 0 - 1
Barry T Redburn 1667 ½ - ½
Chris Hill 1827 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1390 = (6949 + 400 * (1 - 1)) / 5)

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