Event: Division 1

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Opponent Rating Result
Szymon Palucha 188 ½ - ½
Martyn Goodger 189 ½ - ½
Chris J Dorrington 220 1 - 0
Chris Davison 194 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

398 = (791 + 400 * (2 - 0)) / 4)

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