Orange Dirt Trail Series 2026
- Date
- Saturday, October 17, 2026
- Start time
- 7:00 AM start (Chicago)
- Location
- Stillwater, Oklahoma
- Entry fee
- From $40 · goes up to $75 on Oct 1, 2026
- Included with entry
- Includes a shirt
Registration is open.
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Marathon | Marathon | Oct 17, 20267:00 AM | $70$75 after Oct 1, 2026 | – |
| Half Marathon | Half Marathon | Oct 17, 20267:30 AM | $60$65 after Oct 1, 2026 | – |
| 10K | 10K | Oct 17, 20268:00 AM | $50$55 after Oct 1, 2026 | – |
| 5K | 5K | Oct 17, 20268:30 AM | $40$45 after Oct 1, 2026 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The Marathon fee goes up to $75 on Oct 1, 2026.
Race day planning
Entry fee schedule
- Marathon: $70 until Oct 1, then $75 until Oct 17.
- Half Marathon: $60 until Oct 1, then $65 until Oct 17.
- 10K: $50 until Oct 1, then $55 until Oct 17.
- 5K: $40 until Oct 1, then $45 until Oct 17.
Online registration closes Oct 17, 2026, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 7:35 AM, and the Marathon starts at 7:00 AM. The start sits about 980 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
29180 Chisholm Curve, Stillwater, OK 74075
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
2024 results
All results (3 years)5K
10K
Half Marathon
Aggregated from official results for Orange Dirt Trail Series. Individual finisher names are not stored here.
How fast do you need to be at Orange Dirt Trail Series?
At the 2024 5K, the fastest tenth finished in 37:55 or better, the top quarter in 42:50, and half the field in 44:18; the last tenth came in after 1:01:26.
At the 2024 10K, the fastest tenth finished in 1:07:25 or better, the top quarter in 1:13:31, and half the field in 1:22:46; the last tenth came in after 2:01:34.
At the 2024 Half Marathon, the fastest tenth finished in 2:23:03 or better, the top quarter in 2:30:46, and half the field in 2:49:00; the last tenth came in after 3:39:21.
| Age | Women | Men |
|---|---|---|
| Under 20 | 43:24 | 48:11 |
| 20-29 | 41:07 | 43:25 |
| 30-39 | 48:11 | 43:17 |
| 40-49 | 43:41 | 41:35 |
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 2024.
Finishers by year
Down 18 percent since 2022.
All events combined, from official results.
Orange Dirt Trail Series 5K year by year
From 2022 to 2024, the field went from 53 to 61 finishers, and the median time dropped from 46:55 to 44:18.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2024 | 61 (+24%) | 44:18 | under 37:55 | 30:36 |
| 2023 | 49 (-8%) | 46:34 | under 35:59 | 28:28 |
| 2022 | 53 | 46:55 | under 33:21 | 28:56 |
From each year's official results for the 5K; virtual options are left out.
How fast is it?
Slower than most US trail 5Ks
The fastest quarter of the 2024 5K field finished under 42:50, against 31:03 in a typical US trail 5K, so times here run 38 percent slower.
- Half Marathon: Slower than most US trail half marathons. The fastest quarter of the 2022 half marathon field finished under 2:29:31, against 2:16:23 in a typical US trail half marathon, so times here run 10 percent slower.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Typical race-day weather
Around October 17 the day usually runs from 57°F at dawn to 77°F in the afternoon, with measurable rain on about 17% of days. Cold snaps dip to 44°F and hot years reach 88°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- 29180 Chisholm Curve, Stillwater, OK 74075Map
- Course
- Trail
- Start elevation
- About 980 feet
- Included with entry
- T-Shirt
- Distances
- 5K, 10K, Half Marathon, Marathon
- Editions
- 2026 (Oct 17, 2026), 2024 (Oct 26, 2024), 2023 (Oct 21, 2023), 2022 (Oct 29, 2022)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is Orange Dirt Trail Series?
- Saturday, October 17, 2026, starting at 7:00 AM.
- How much does it cost?
- Entry starts at $40 before processing fees, and rises to $75 on Oct 1, 2026.
- When does registration close?
- Online registration closes Oct 17, 2026, unless the race fills first.
- Do runners get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- What distances can I run?
- 5K, 10K, Half Marathon, Marathon.
- How big is it, and how fast?
- In 2024, 61 runners finished the 5K; the median finish was 44:18 and the winner ran 30:36.
- Is it a fast course?
- The fastest quarter of the 2024 5K field finished under 42:50, against 31:03 in a typical US trail 5K, so times here run 38 percent slower.
- Where does it start?
- 29180 Chisholm Curve, Stillwater, OK 74075.
From the organizers
Orange Dirt Trail Series
5K | 10K | Half Marathon | Marathon
Lake McMurtry - Stillwater, OK
Saturday October 17, 2026
Registration
Registration includes a finisher's medal and refreshments during the post-race celebration. Register by September 30 to guarantee your t-shirt size.
Packet Pickup
Friday, October 16 | 5:00pm - 8:00pm
Stonecloud Stillwater Patio & Taproom
917 S Husband St
Stillwater, OK 74074
Saturday, October 17 (race day) | 5:30am until 15 minutes before your distance start time
Lake McMurtry East Pavilion
29180 Chisholm Curve
Stillwater, OK 74075
Start Times
7:00am: Marathon start
7:30am: Half Marathon start
8:00am: 10K start
8:30am: 5K start
Course Description