Event: Norfolk County Chess Championships- Challengers

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Opponent Rating Result
Graham K Blowers 1741 0 - 1
Peter Stone 1335 ½ - ½
David C May 1493 ½ - ½
Sharvari Saharkar 1126 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1224 = (5695 + 400 * (0 - 2)) / 4)

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