Event: Norfolk County Chess Championships- Challengers

Opponent Rating Result
David B Elsey 1407 1 - 0
David E McLean 1697 ½ - ½
David C May 1493 1 - 0
Bharath Klass 1600 1 - 0
Graham K Blowers 1741 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1828 = (7938 + 400 * (3 - 0)) / 5)

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