October ultramarathons in Missouri, United States

Alternating dirt and paved 4.167-mile loops with timed laps, creek crossings, fields, cedar groves, rural countryside, and changing fall scenery

Four-loop 50k ultramarathon on technical singletrack through rolling hills, forested terrain, and marked trails in Greensfelder Park, Wildwood, MO.

Challenging 1.5-mile loop with rocks, roots, and steep climbs through Cape Girardeau forest

Scenic Rothwell Park trail loops with a central pit area, festival-like atmosphere, and a community-focused endurance format.

Single-track loops through Rock Bridge State Park, technical terrain, multiple creek crossings, Devil’s Ice Box and Gans Creek Wild Area Trails, scenic woodland

USATF-certified 1.17-mile paved loop winding through Minnie Ha Ha Park with mostly flat terrain, wooded areas, and Meramec River views amid fall foliage

Missouri-Kansas route along the changing Missouri River, 25-mile loops with riverbank views, Gladden Bottoms, Loess Hills, paved and gravel trails, low rolling

101 miles on the Ozark Trail through rugged hollows and ridges of Mark Twain National Forest with autumn scenery