Dover, DE — Bo Mach scored a 38-1 upset in Thursday’s (Dec. 12) $25,000 open pace at Dover Downs while Wiggle It Jiggleit, the 2-1 favorite who was continuing his comeback from a nearly three-year layoff, finished seventh.

Bo Mach upset the feature on Thursday at Dover Down. Fotowon Photo.

Bo Mach, driven by Corey Callahan and trained by Dylan Davis, won by a neck over Larry Karr in a career-best 1:51.1. Billy Badger N finished third.

It was the eighth win in 33 starts this year for Bo Mach, a 4-year-old gelding by Mach Three out of Magnify This. He pushed his seasonal earnings to $133,480.

Wiggle It Jiggleit, the 2015 Horse of the Year, was making his third start this year after not racing since October 2016 because of issues related to back troubles. Thursday’s loss was only the second off-the-board finish of his 54-race career.

A 7-year-old gelding, Wiggle It Jiggleit has won 38 of 54 career races and earned $3.91 million. His earnings rank sixth among pacers in North American harness racing history.