The Big BO 50K
Always double-check with the organizer's website! This page may contain affiliate links.
The Big BO 50K
The Big BO 50K is a trail running event held on the B&O Trail with a start location at Daredevil Brewing Co., 1151 N Main St., Speedway, IN 46224. The course follows the entire length of the newly completed B&O Trail through Marion and Hendricks counties, heading east toward downtown Indianapolis for several miles, then continuing into rural Hendricks County before returning to Speedway.
Organizers describe the course as flat and fast. The event offers multiple distance options and separate registration windows and fees for each distance. Medals are guaranteed for the first 150 finishers.
Distances:
- 50K
- 25K
- 10K
- 5K
Registration details by event in the source include opening and closing dates and individual entry fees for each distance. The 50K lists a cutoff time of 3:00 PM. The event takes place on a single day in October 2026 and is presented by Stay Obsessed. and the B&O Trail Association. Visit the organization's website for the most recent information.
