Event: 4-Board Division 1

Opponent Rating Result
Keith Thompson 1930 ½ - ½
John Thackray 1953 0 - 1
John Thackray 1953 ½ - ½
Bryan Hesler 1720 1 - 0(def)
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1812 = (5836 + 400 * (0 - 1)) / 3)

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