Event: 4-Board Division 1

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Opponent Rating Result
F Hal Jorna 1617 0 - 1
Stephen Crow 1899 1 - 0
Keith Thompson 1792 ½ - ½
Robin A Edwards 1636 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1836 = (6944 + 400 * (2 - 1)) / 4)

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