Event: Sheffield Junior Open

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Opponent Rating Result
Ruby Joyce 0 1 - 0
Daniel J Clayton 1390 0 - 1
Zak Lipman 0 1 - 0
Samiksha Yerabati 1233 ½ - ½
Charley Perkins 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

605 = (2623 + 400 * (2 - 1)) / 5)

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