Event: Norfolk County Chess Championships- Challengers

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Opponent Rating Result
Larysa Klepikovska 1496 ½ - ½
Dennis G Driscoll 1339 1 - 0
Sharvari Saharkar 1473 1 - 0
Henry Morgan 1405 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1528 = (5713 + 400 * (2 - 1)) / 4)

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