Event: 6-Board Division 2

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Opponent Rating Result
Michael C Hackett 1670 ½ - ½
Jason Clemmey 1383 0 - 1
Dave Griffiths-Jones 1100 0 - 1
Mark Schofield 1332 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1071 = (5485 + 400 * (0 - 3)) / 4)

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