Texas · Half Marathon
3M Half Marathon
3M Half Marathon is a half marathon event held in Austin, Texas. It is usually held in January; the exact date hasn't been confirmed in the listing yet. About 6,000 runners take part across all distances.
- Usually held
- January
- Location
- Austin, TX
- Field size
- ~6,000 runners
Race details
- Usually held in
- January (date not confirmed)
- Location
- Austin, Texas
- Distances
- Half Marathon
- Field size
- About 6,000 runners
- Course
- Net downhill, ~300 ft drop, ~250 ft gain
- Registration
- downhilltodowntown.com
- Official website
- downhilltodowntown.com
About the 3M Half Marathon
A famously fast net-downhill half marathon from north Austin to a downtown finish, drawing over 6,000 PR-seeking runners from across the country and abroad.
Rankings and notes
- Rankings and awards
- One of the fastest half-marathon courses in the U.S. ('Downhill to Downtown'); USATF-certified; PR-friendly; hosts a pro field with prize purse. 32nd annual in 2026.
- Notes
- Large Austin half marathon known for a fast downhill course.
More half marathons in Texas
Coming up next, by confirmed date.
-
Golden Harvest Half Marathon & 5k/10k - San AntonioSan Antonio, TXHalf Marathon50m1 Miles5K +1 more
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Keep exploring
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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.
3M Half Marathon: common questions
- When is the 3M Half Marathon?
- The next date hasn't been announced in the listing yet. The race is usually held in January. Check the organiser's website for the official date.
- Where is the 3M Half Marathon held?
- In Austin, Texas.
- What distances does the 3M Half Marathon offer?
- Half Marathon.
- How many people run the 3M Half Marathon?
- About 6,000 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 3M Half Marathon?
- Registration is handled by the organiser at downhilltodowntown.com. Entry fees, caps and deadlines are set there.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.