Event: Division One

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Opponent Rating Result
M John Cawston 155 1 - 0
John K Holliday 141 1 - 0
Ian P Hunter 158 0 - 1
Dale H Cullum 159 1 - 0
Robert A Dean 148 1 - 0
Lee Crawford 151 ½ - ½
Phil Walker 109 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

374 = (1021 + 400 * (5 - 1)) / 7)

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