Event: Division 3

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Opponent Rating Result
David I Hulme 144 ½ - ½
Chris P Hankey 155 0 - 1
William G Armstrong 139 1 - 0
Marcel V Taylor 144 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

46 = (582 + 400 * (1 - 2)) / 4)

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