Event: Ribbands Rapidplay

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Opponent Rating Result
Konrad Scheffler 1781 1 - 0
Paul R Kemp 1949 ½ - ½
Alan Wadsworth 1625 1 - 0
Simon Marsden 1499 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2014 = (6854 + 400 * (3 - 0)) / 4)

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