Event: IM Brown Shield

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Opponent Rating Result
David C Wedge 1898 0 - 1
Peter Catt 1777 0 - 1
Chris J Terrington 1537 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1471 = (5212 + 400 * (0 - 2)) / 3)

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