The Big BO 50k
- Date Sat 10th October 2026
- Time 8:00AM EDT
- Location Indianapolis, Indiana
- Price $27.85 - $80.85
- Races 4 races
- Distances Ultra, 10km, 5km
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Event summary
Get ready for an exhilarating experience at the First Annual Big BO 50K Ultramarathon on Saturday, October 10, 2026, in the vibrant city of Indianapolis, Marion! This exciting event invites runners of all levels to explore the newly completed B&O Trail, offering a fast and thrilling 50K journey through the heart of central Indiana. The race kicks off at Daredevil Brewing Co. in Speedway, known as the Racing Capital of the World, and takes participants on a scenic route that stretches through Marion and Hendricks County.
Runners will head east toward downtown Indianapolis before turning back to enjoy the picturesque landscapes of rural Hendricks County. With its flat and fast course, the Big BO 50K is designed for those aiming for personal records or those stepping into the world of ultrarunning for the first time. Join your fellow running enthusiasts for a day filled with camaraderie, excitement, and the chance to push your limits. Stay active, stay healthy, and most importantly, stay obsessed!
Runners will head east toward downtown Indianapolis before turning back to enjoy the picturesque landscapes of rural Hendricks County. With its flat and fast course, the Big BO 50K is designed for those aiming for personal records or those stepping into the world of ultrarunning for the first time. Join your fellow running enthusiasts for a day filled with camaraderie, excitement, and the chance to push your limits. Stay active, stay healthy, and most importantly, stay obsessed!
Organiser's Description
Stay Obsessed. and the B&O Trail Association are proud to welcome you to the First Annual Big BO 50K Ultramarathon
Join your fellow run obsessed friends on the newly completed B&O Trail for a fast, exciting 50K experience unlike any other in central Indiana.
The journey begins at Daredevil Brewing Co. in the heart of Speedway the Racing Capital of the World and covers the entire length of the B&O trail through Marion and Hendricks County. Youll Head east toward downtown Indy for a few miles before turning around head out to rural Hendricks County before making the return trip back to Speedway.
This course is flat, fast, and built for big goals. Whether you're dipping your toes into the world of ultrarunning for the first time or chasing a shiny new 50K PR, the Big BO 50K delivers the perfect stage to test your limits.
Stay Active. Stay Healthy. Stay obsessed.
Join your fellow run obsessed friends on the newly completed B&O Trail for a fast, exciting 50K experience unlike any other in central Indiana.
The journey begins at Daredevil Brewing Co. in the heart of Speedway the Racing Capital of the World and covers the entire length of the B&O trail through Marion and Hendricks County. Youll Head east toward downtown Indy for a few miles before turning around head out to rural Hendricks County before making the return trip back to Speedway.
This course is flat, fast, and built for big goals. Whether you're dipping your toes into the world of ultrarunning for the first time or chasing a shiny new 50K PR, the Big BO 50K delivers the perfect stage to test your limits.
Stay Active. Stay Healthy. Stay obsessed.
Races
-
50k
Incl. $5.85 Fee & T-Shirt
Sat 10th October 2026 (8:00AM EDT)
$80.85
4:00 PM Cutoff Time. -
25k
Incl. $4.65 Fee & T-Shirt
Sat 10th October 2026 (8:00AM EDT)
$59.65
-
10k
Incl. $3.45 Fee & T-Shirt
Sat 10th October 2026 (9:00AM EDT)
$38.45
-
5k
Incl. $2.85 Fee & T-Shirt
Sat 10th October 2026 (9:00AM EDT)
$27.85
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Location
Daredevil Brewing Co., 1151 N Main St., Indianapolis, 46224, IN, United States
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The Big BO 50k
