Event: Division 3

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Opponent Rating Result
Tiiu Loog 1662 ½ - ½
Stuart P Iles 1807 1 - 0
Colin J Davis 1979 1 - 0
Dave J Williams 1683 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2083 = (7131 + 400 * (3 - 0)) / 4)

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