And they are off and running... The Martinsville Off Track Betting Center of Colonial Downs is located just a quarter of a mile from the Martinsville Speedway. We're a non-smoking facility open Wednesday - Sunday. All betting patrons must be at least 18 years old. Race fans can watch many horse races, up to 20 racetracks around the United States, including such traditions as the Kentucky Derby, on over 150 closed circuit TV screens via satellite. The Backstretch Grill is open for your food & beverage needs. We also have a cocktail bar. Various special events are held each week to include: Wednesday (Texas Holdem Poker Tournament) Friday (Tic-Track-Dough) Saturday (TRIZOTIC Handicapping Contest) Hours: Wednesday-Saturday 12PM - Last Race Sunday 12PM - 7PM Closed Mon and Tue Visit us on the web for more information.