WELCOME TO THE AMERICAN BOTTOM

This is a unique road ultra on a beautiful course, following the Mississippi River, as you run through the historic American Bottom. Race headquarters is in Columbia, Illinois just outside of St. Louis, Missouri. The race offers a 113 mile and a 56 mile option.

The course loosely follows the American Discovery Trail and the Kaskaskia - Cahokia Trail (Illinois' first road). You’ll watch the sun rise over the Illinois bluffs while running on levees and deserted backroads, from Columbia to the confluence of the Kaskaskia and Mississippi Rivers. You’ll make your way through many historic sites, including Piggott's Fort, Fort de Chartres, and the town of Prairie du Rocher.

This is a flat and fast course with generous cut off times, plenty of aid stations, and a friendly atmosphere. It will make a great first hundred miler, or a chance for you to set a new personal record at this distance. So, if you're interested in a no frills ultra with a low entry fee, then come test yourself this spring in the American Bottom.

Please visit americanbottoms113.com for full details

113 Mile

6:00 a.m. Start. Saturday March 20th, 2027

5:00 p.m. Finish. Sunday March 21st, 2027

35 hour cut-off

18:30 minute / mile pace

1,591 ft. of elevation gain total

Out & back course

51% pavement / 49% gravel

17 Aid Stations

56 Mile

Saturday March 20th, 2027

6:00 a.m. Start

11:30 p.m. Finish

17½ hour cut-off

18:30 minute / mile pace

791 ft. of elevation gain total

Point to point course

51% pavement / 49% gravel

8 Aid Stations

15% Veteran & First Responder Discount

Contact americanbottoms113.com/contact for coupon code

Event's current local time: 1:00 AM CT