100th running of the Hambletonian marks a century of the biggest event in harness racing

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AP2006

FILE - Glidemaster (8), driven by John Campbell, pulls away from Chocolatier (10), driven by Doug R. Ackerman and Blue Mac Lad (2), driven by George Brennan, to win the Hambletonian harness race Saturday, Aug. 5, 2006 at Meadowlands Racetrack in East Rutherford, N.J. (AP Photo/Bill Kostroun, File)