Event: 30 Minute Rapid

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Opponent Rating Result
Simon Green 0 0 - 1
Glen Smith 0 1 - 0
Alan Ward 0 0 - 1
Keith May 1013 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

253 = (1013 + 400 * (2 - 2)) / 4)

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