Logo

Backyard Ultra in New Town

Saint Charles, United States • 11-12 Oct 2025

Backyard Ultra in New Town is the first annual ultra to be held in Saint Charles, Missouri, at the New Town amphitheater (3246 Rue Royale St). The event centers on a 4.17-mile loop, with a last-person-standing format requiring runners to be back at the start within the next hour to begin the next lap. The course offers a supportive, community atmosphere with on-site bathrooms and refueling areas near the start/finish, plus nearby restaurants and cafés.

Each completed lap earns a commemorative patch noting distance and laps. A race-jar funds the prize for the winner with half donated to MSMDS charity. Volunteers support the event through Sunday; patches and distance details are recorded for all participants. Visit the organization's website for the most recent information.

United States Missouri Saint Charles

Race information

Registration
4 mi
4.17 Mile Loop
Visit the organization's website for the most recent information.
Trail runs nearby

Declue Loops Trail Race

Pacific - 25 mi from Saint Charles

DeClue Loops Trail Race is a premier Missouri trail event held at Greensfelder Park in Wildwood. The DeClue Trail offers four distance options: 8 miles (one loop), 16 miles (two loops), a marathon (three loops), and 50K (four loops) on an 8..

Minnie Ha Ha 12 Hour Run

Sappington - 19 mi from Saint Charles

Minnie Ha Ha 6 & 12 hour run : Oct 18, 2025 The event takes place at Minnie Ha Ha Park in St. Louis, MO (801 Old Gravois Road). It is a timed endurance event with the following race options: 12-hour 6-hour Race details The course is a..

Babler Bongo 15K Trail Race

Wildwood - 16 mi from Saint Charles

The Babler Bongo 15K Trail Race, taking place at Dr. Edmund A. Babler Memorial Park in Wildwood, MO, is an exciting trail running event scheduled for October 25, 2025.This race features a 15K trail run and a new 15K RUCK option, where parti..

Run 4 Impact 5K Trail Run/Walk

St. Louis - 19 mi from Saint Charles

Event details The Run 4 Impact is a 5K trail run/walk held at Cliff Cave County Park, 806 Cliff Cave Road, St. Louis, MO, on October 25, 2025. Online registration has tiered pricing: $39.05 (May 7 - Jun 30), $44.35 (Jul 1 - Sep 30), and $49..

The Skippo Trail Race

Manchester - 13 mi from Saint Charles

The SKIPPO Trail Race takes place at Castlewood State Park’s Special Events Area in Ballwin, Missouri. It offers multiple trail distances: 10k, Half-Marathon, 30k, plus the 10k-Half Marathon Challenge and the 40k Challenge (10k and 30k). Th..

The Whiskey Run - St. Louis / St. Charles

Saint Charles

Whiskey Run St. Louis / St. Charles unfolds along the Katy Trail in Saint Charles, MO, with a race start/finish at the Katy Trail Parking Lot (1050 S Riverside Dr).The event offers 5K, 10K, and Half Marathon distances; the Half Marathon is..