Event: IM Brown Shield

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Opponent Rating Result
Chris R Tinker 1676 0 - 1
Thomas Rampling 1742 0 - 1
Phill J Beckett 1723 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1447 = (5141 + 400 * (0 - 2)) / 3)

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