Event: Norfolk County Chess Championships- Challengers

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Opponent Rating Result
Steve Sanders 1600 ½ - ½
Colin R Payne 1641 ½ - ½
David P Jones 1460 1 - 0
Bharath Klass 1721 ½ - ½
Lucy Batley 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1444 = (6422 + 400 * (2 - 0)) / 5)

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