Event: 6-Board Division 1

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Opponent Rating Result
Dave M Cooper 121 1 - 0
Steve Tomlinson 89 1 - 0
Jack Walker 120 0 - 1
Michael A Pollard 129 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

215 = (459 + 400 * (2 - 1)) / 4)

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