Missouri · Half Marathon · 5K
The Innsbrook Half Marathon & 10k
The Innsbrook Half Marathon & 10k is a half marathon and 5K event held in Innsbrook, Missouri. It was last held on October 24, 2026 and is usually run in October; the next date hasn't been announced yet. About 500 runners take part across all distances.
- Usually held
- October
- Location
- Innsbrook, MO
- Field size
- ~500 runners
Race details
- Last held
- October 24, 2026
- Usually held in
- October
- Location
- Innsbrook, Missouri
- Distances
- Half Marathon, 5K
- Field size
- About 500 runners
- Registration
- runsignup.com
Registration, course & weather
- Registration status
- Registration status as last checked September 26, 2026: open
- Entry fee
- Listed fee for the longest distance, $65 (from innsbrookhalf.com, checked September 26, 2026)
- Start time
- 9:00 AM CDT
- Course profile — Half Marathon
- Loop course; Mostly road, some trail; USATF certified
- Course profile — 10K
- Loop course; Mostly road, some trail
- Typical race-day weather
- about 53°F at the start, 63% humidity, 8 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 26, 2026)
About the The Innsbrook Half Marathon & 10k
The Innsbrook Half & 10k returns for 2026. Run on one of the most scenic, beautiful and challenging courses in the Midwest during the peak of fall color in Missouri! Hosted by Big River Race Management at the beautiful Innsbrook Resort. Located just one hour from St. Louis, runners and walkers will be treated to 13.1 or 6.2 miles on a mix of pavement and smooth gravel roads. A certified course, custom finisher medal, premium long-sleeved giveaway, a catered to-go lunch, live music and cold beer…
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Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
The Innsbrook Half Marathon & 10k: common questions
- When is the The Innsbrook Half Marathon & 10k?
- The next date hasn't been announced in the listing yet. The race is usually held in October. Check the organiser's website for the official date.
- Where is the The Innsbrook Half Marathon & 10k held?
- In Innsbrook, Missouri.
- What distances does the The Innsbrook Half Marathon & 10k offer?
- Half Marathon and 5K.
- How many people run the The Innsbrook Half Marathon & 10k?
- About 500 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the The Innsbrook Half Marathon & 10k?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the The Innsbrook Half Marathon & 10k?
- Registration status as last checked September 26, 2026: open. Listed fee for the longest distance, $65 (from innsbrookhalf.com, checked September 26, 2026).
- What time does the The Innsbrook Half Marathon & 10k start?
- 9:00 AM CDT.
- What is race-day weather usually like at the The Innsbrook Half Marathon & 10k?
- about 53°F at the start, 63% humidity, 8 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 26, 2026).
Plan this race in RaceRove
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