Course
Course Info
This course is two 5k loops. If you are doing the 10k or above, you will alternate loops each time. 5K: One Loop. 10K: Two Alternating Loops. 2, 4, 6, & 24 hour: Who can do the most alternating loops? Course…


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| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Friday, Nov 6, 2026 | ||||
| 24 Hour Timed Race | – | Nov 6, 20267:00 PM | $60 | – |
| Saturday, Nov 7, 2026 | ||||
| 6 Hour Timed Race | – | Nov 7, 20266:00 AM | $42 | – |
| 2 Hour Timed Race | – | Nov 7, 20268:00 AM | $35 | – |
| 4 Hour Timed Race | – | Nov 7, 20268:00 AM | $40 | – |
| 10K Run | 10K | Nov 7, 20268:10 AM | $34 | – |
| 5K Run | 5K | Nov 7, 20268:10 AM | $34 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Online registration closes Nov 8, 2026, unless the race fills first.
At $34, entry is about 21 percent below a typical 10K in Texas, which costs $43 right now.
A typical finisher at a 10K in San Angelo runs 1:10:00, about 11:16 a mile, based on 3 races with published results. Women typically finish in 1:14:54 and men in 1:03:33.
Sunrise on race morning is at about 7:00 AM, and the 24 Hour Timed Race starts at 7:00 PM. The start sits about 2,020 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
5640 Twin Buttes Marina Park Road, San Angelo, TX 76904
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Aggregated from official results for Dinosaur Run. Individual finisher names are not stored here.
At the 2025 5K Run, the fastest tenth finished in 25:23 or better, the top quarter in 29:48, and half the field in 35:36; the last tenth came in after 53:40.
At the 2025 10K Run, the fastest tenth finished in 45:10 or better, the top quarter in 52:56, and half the field in 1:05:24; the last tenth came in after 1:24:24.
At the 2025 24 Hour Timed Race, the fastest tenth finished in 9:02 or better, the top quarter in 10:27, and half the field in 18:50; the last tenth came in after 2:39:44.
| Age | Women | Men |
|---|---|---|
| Under 20 | 42:44 | 24:38 |
| 20-29 | 30:03 | 28:19 |
| 30-39 | 30:51 | 24:49 |
| 40-49 | 33:22 | 34:52 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
Where a finish time would have placed in 2025.
Up 163 percent since 2021.
All events combined, from official results.
From 2021 to 2025, the field went from 50 to 98 finishers, and the median time dropped from 35:48 to 35:36.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2025 | 98 (+56%) | 35:36 | under 25:23 | 20:02 |
| 2024 | 63 (-10%) | 38:51 | under 25:40 | 20:53 |
| 2023 | 70 (+37%) | 37:10 | under 28:34 | 21:07 |
| 2022 | 51 (+2%) | 39:48 | under 29:06 | 20:17 |
| 2021 | 50 | 35:48 | under 23:31 | 20:19 |
From each year's official results for the 5K; virtual options are left out.
Faster than most Texas trail 5Ks
The fastest quarter of the 2025 5K field finished under 29:48, against 33:44 in a typical Texas trail 5K, so times here run 12 percent faster.
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.
Around November 6 the day usually runs from 51°F at dawn to 73°F in the afternoon, with measurable rain on about 11% of days. Cold snaps dip to 42°F and hot years reach 83°F.
Based on 65 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
What the organizers of Dinosaur Run cover on their registration page, in brief.
Course
This course is two 5k loops. If you are doing the 10k or above, you will alternate loops each time. 5K: One Loop. 10K: Two Alternating Loops. 2, 4, 6, & 24 hour: Who can do the most alternating loops? Course…
Course
Starting line location: https://maps.apple.com/place?coordinate=31.390552,-100.553876&name=My%20Location&map=h. Starting at the end of FM2288, take a right and drive approximately 3.3 miles to Twin Buttes Marina Road (on the left). Once…
Organize this race? Add details or a correction
The Dinosaur Run consists of alternating 5k loops with options including 5K, 10K, 2 Hour, 4 Hour, 6 Hour, and 24 Hour options.
5K: One 5K loop
10K: One of each 5K loops
2 Hour: How many alternating 5K loops can you do before time runs out?
4 Hour: How many alternating 5K loops can you do before time runs out?
6 Hour: How many alternating 5k loops can you do before time runs out?
24 Hour: How many alternating 5k loops can you do before time runs out?