Event: NSDCA Division 1

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Opponent Rating Result
John R Booth 1866 0 - 1
Gintare (Gee) Cross 1750 0 - 1
John R Booth 1871 ½ - ½
Harry Gardiner 1880 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1542 = (7367 + 400 * (0 - 3)) / 4)

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