Event: Division One

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Opponent Rating Result
Gary Haime 152 1 - 0
Stephen J Willetts 170 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

161 = (322 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Phil Bull 167 ½ - ½
Mark Bethel 144 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

156 = (311 + 400 * (0 - 0)) / 2)