Event: 6-Board Division 2

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Opponent Rating Result
J Gerry Johnstone 128 ½ - ½
Ahmet BH Hoscan 149 ½ - ½
Chris J Matthews 144 ½ - ½
Stephen Philp 128 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

237 = (549 + 400 * (1 - 0)) / 4)

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