Event: Division 3

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Opponent Rating Result
Robert Lacey 1555 1 - 0
Lynne Fursman 1605 0 - 1
Ian Webster 1479 1 - 0
Frank Jewell 1521 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1740 = (6160 + 400 * (3 - 1)) / 4)

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