Event: Parkinson

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Opponent Rating Result
Ludi Simpson 0 Adjourned
Henri Pascal 122 1 - 0
Keith Marsh 127 1 - 0
Sam Scurfield 137 ½ - ½
Kevin Winter 144 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

233 = (530 + 400 * (2 - 1)) / 4)

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