Organizers of the Indianapolis 500 mini-marathon have canceled the event for the first time in 43 years and suspended all other festivities through the second weekend of May.

The organization cited the recommendation from the Centers for Disease Control and Prevention to cancel or postpone large events over the next eight weeks.

The 13.1-mile footrace is considered one of the top half-marathons in the United States. It had nearly 20,000 finishers last year.

READ MORE: Runner Chasing History In 43rd Indy Mini-Marathon

The race is part of the festivities surrounding the Indy 500, which is scheduled for May 24. IndyCar has canceled all races until the GMR Grand Prix, which is still on the calendar for May 9 at Indianapolis Motor Speedway.