Event: IM Brown Shield

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Opponent Rating Result
Ed Strudwick 1548 ½ - ½
Peter J Mulleady 1966 ½ - ½
Michael I Connor 1746 0 - 1
Mark Waterhouse 1705 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1641 = (6965 + 400 * (0 - 1)) / 4)

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