Event: IM Brown Shield

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Opponent Rating Result
Chris J Terrington 1550 1 - 0
Daniel Meredith 1740 0 - 1
Simon Bartle 1117 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1602 = (4407 + 400 * (2 - 1)) / 3)

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