Registration is open.
We earn a small commission when you register through this link, at no cost to you. Details
Add to calendar: Apple or Outlook · Google
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| 10 Mile | 10 Mile | Oct 17, 20269:00 AM | $75$80 after Oct 1, 2026 | 175 |
| 5 Miler | 8K | Oct 17, 20269:00 AM | $70$75 after Oct 1, 2026 | 200 |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
The 10 Mile fee goes up to $80 on Oct 1, 2026.
Online registration closes Oct 17, 2026, unless the race fills first.
Sunrise on race morning is at about 7:11 AM, and the 10 Mile starts at 9:00 AM. The start sits about 5,600 feet above sea level, high enough that most runners from lower ground run noticeably slower.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
15600 W Morrison Rd., Lakewood, CO 80228
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Aggregated from official results (3W Races) for The Great Trailhead Foot Race 5 & 10 Miler. Individual finisher names are not stored here.
At the 2025 10 Mile, the fastest tenth finished in 1:24:37 or better, the top quarter in 1:32:43, and half the field in 1:45:30; the last tenth came in after 2:09:49.
At the 2025 5 Miler, the fastest tenth finished in 42:03 or better, the top quarter in 48:58, and half the field in 55:01; the last tenth came in after 1:11:45.
| Age | Women | Men |
|---|---|---|
| 20-29 | 1:51:34 | n/a |
| 30-39 | 1:30:59 | 1:26:19 |
| 40-49 | 1:23:32 | 1:35:03 |
| 50-59 | 1:42:18 | 1:28:18 |
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.
Down 34 percent since 2021.
All events combined, from official results.
From 2021 to 2025, the field went from 151 to 99 finishers, and the median time rose from 1:42:49 to 1:45:30.
| Year | Finishers | Median | Fastest tenth | Winner |
|---|---|---|---|---|
| 2025 | 99 (-7%) | 1:45:30 | under 1:24:37 | 1:07:18 |
| 2024 | 106 (-31%) | 1:44:23 | under 1:20:05 | 1:03:12 |
| 2023 | 154 (+22%) | 1:46:52 | under 1:20:42 | 1:10:24 |
| 2022 | 126 (-17%) | 1:43:15 | under 1:22:30 | 1:09:42 |
| 2021 | 151 | 1:42:49 | under 1:22:05 | 1:07:46 |
From each year's official results for the 10 Mile; virtual options are left out.
Slower than most US 10-mile races
The fastest quarter of the 2025 10-mile race field finished under 1:32:43, against 1:24:00 in a typical US 10-mile race, 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.
Around October 17 the day usually runs from 41°F at dawn to 67°F in the afternoon, with measurable rain on about 9% of days. Cold snaps dip to 34°F and hot years reach 77°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.
What the organizers of The Great Trailhead Foot Race 5 & 10 Miler cover on their registration page, in brief.
Schedule and packet pickup
Date: Oct 15, 2026. Time: 4-7 PM. Location: Road Runner Sports-Westminster. Address:10442 Town Center Dr, Ste 300, Westminster, CO 80021. Yes, you can pick up for a friend or send someone to pick up for you! All team bibs/swag will be…
Schedule and packet pickup
Pre-Event Contact. We would love to work with you to feature your product or business with our racers. There are many ways to be involved and gain exposure, from hosting a packet pick up location or after party, sponsoring a water station…
Schedule and packet pickup
3W Races is proud to have Backpack Society as our charity partner for this event. Bring 5 or more items to the in-kind donation gathering on race day and you'll be entered into the race day raffle where you can win prizes! Winners are…
Schedule and packet pickup
8 AM: Expo Open - Walk-Up Registration and Late Packet Pick Up. NOTE: The gates to the park will not open until 7:00 am. No racer admittance to the park PRIOR to 7:00 am. 9:00 AM: 5 & 10 Miler Start. 9:30 AM: After Party/Expo Opens! 9:55…
Course
Course Support. Water stations. -> The 5 mile course will have ONE aid station at approximately mile 2.5 with water and sports drink. There will be cups at this aid station for water and electrolytes. Shortly after the aid station, you…
Parking and travel
The expo and race start/finish will be at the Pelican Lakes shelter and parking lot. To get there, enter at the main park entrance. Turn right at the first intersection, Kumpfmiller Dr. Follow Kumpfmiller Dr around for almost 2 miles until…
Organize this race? Add details or a correction
Welcome to the Great Trailhead Foot Race at Bear Creek Lake Park! Featuring legitimate TRAILS in the shadow of Denver's skyline, you'll love the single-track and dirt as you race 5 miles, or a double lap of 10 miles to the finish line party!
Bring your ID because there's FREE BEER for 21 and up (with a valid ID)! Plus, your registration includes entry to the park for the whole day and FREE Hot Dogs, Chips, Protein Bars, N/A Beer, Bananas, and more! AND 10 Milers get a Finisher Mug!
Entry fees include the cost of entry into the park, a post-run party, and one finisher's meal!