Event: Norfolk County Chess Championships- Challengers

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Opponent Rating Result
Stephen Livermore 1752 0 - 1
Mark Philip Baldock 1465 0 - 1
Armando Galletti 1700 0 - 1
Dennis G Driscoll 1339 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1264 = (6256 + 400 * (0 - 3)) / 4)

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