Event: 6-Board Division 1

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Opponent Rating Result
Alec Grice 138 0 - 1
Derek A Sheppard 135 ½ - ½
Steve Tomlinson 89 ½ - ½
Michael A Pollard 129 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

23 = (491 + 400 * (0 - 1)) / 4)

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