The St. Marks Duathlon
- Date
- Last held Mar 15, 2026, next date to be announced
- Location
- Saint Marks, Florida
Registration for the next edition has not opened.
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Start location and course
25 Riverside Dr, Saint Marks, FL 32355
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
2026 results
All resultsAggregated from official results (David Landis) for The St. Marks Duathlon. Individual finisher names are not stored here.
How fast do you need to be at The St. Marks Duathlon?
In 2026, the fastest tenth finished in 1:13:14 or better, the top quarter in 1:19:33, and half the field in 1:26:59; the last tenth came in after 1:38:33.
| Age | Women | Men |
|---|---|---|
| 30-39 | n/a | 1:20:55 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
What would my time get me?
Where a finish time would have placed in 2026.
Swim, bike and run splits at The St. Marks Duathlon
At the 2026 The St. Marks Duathlon, the bike decided the most: the middle of the field lost about 5:42 to the top quarter there, 42% of the gap across the three legs.
| Leg | Top 10% | Top 25% | Median | Slowest 25% |
|---|---|---|---|---|
| Run 1 | 21:52 | 23:51 | 26:48 | 29:23+ |
| T1 | 0:39 | 0:45 | 0:57 | 1:17+ |
| Bike | 37:01 | 39:05 | 41:50 | 47:09+ |
| T2 | 0:26 | 0:32 | 0:45 | 0:57+ |
| Run | 12:08 | 13:02 | 14:59 | 16:05+ |
Each column ranks finishers on that leg alone, from the race's published results. T1 and T2 are transitions.
Race details
- Where
- 25 Riverside Dr, Saint Marks, FL 32355Map
- Course
- Road
- Distances
- Duathlon
- Editions
- 2026 (Mar 15, 2026), 2025 (Feb 23, 2025), 2024 (Jan 28, 2024), 2023 (Mar 5, 2023), 2022 (Mar 20, 2022), 2021 (Oct 10, 2021)
- Status
- The next edition has not been announced yet. Past events: The St. Marks Duathlon, The St. Marks Duathlon (Fat Tire), The St. Marks Duathlon (Relay), The St. Marks Duathlon, The St. Marks Duathlon (Fat Tire).
Organize this race? Add details or a correction
Quick answers
- When is The St. Marks Duathlon?
- The next date has not been announced.
- How much does it cost?
- See the registration page for current pricing.
- What distances are offered?
- Duathlon.
- How big is it, and how fast?
- In 2026, 30 athletes finished the The St. Marks Duathlon; the median finish was 1:26:59 and the winner finished in 1:09:11.
- Where does it start?
- 25 Riverside Dr, Saint Marks, FL 32355.
- Is there a course map?
- Yes, the organizers publish the route on MapMyRun; the link is under Start location and course.
From the organizers
The 2026 edition of the St. Marks Duathlon will be held on Sunday, March 15th.
RACE OVERVIEW / COURSE
We hope you can come out and enjoy this fun and competitive multisport event. The race consists of a 5K (3.1 miles) run, 20K (12.4 miles) bike, and 2.5K (1.6 miles) run in that order. Proceeds from the event go to support the Gulf Winds Triathletes. The St. Marks Duathlon is a USA Triathlon sanctioned race, which means all participants must hold a USA Triathlon membership or purchase a one-day license.
Course maps are linked below:
Run #1 Route Bike Route Run #2 Route