Event: A Division

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Opponent Rating Result
Brian R Myers 144 1 - 0
Peter Harker 140 1 - 0
Ray Honeybourne 136 ½ - ½
David Lowcock 101 1 - 0
Andrew Austen 52 1 - 0
Ron A Stather 133 1 - 0
J Alan Stockley 92 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

457 = (798 + 400 * (6 - 0)) / 7)

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