50KOther10K5KTrail

Rattler Trail Race 2027

Date
Saturday, April 17, 2027
Start time
7:00 AM start (Denver)
Go to the race website

Prices rise during the registration window; current pricing is shown on UltraSignup. Entries cannot be transferred.

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Events and entry fees

EventDistanceWhenEntry feeCap
25KOtherApr 17, 20277:00 AMSee registration–
50K50KApr 17, 20277:00 AMSee registration–
10K10KApr 17, 20278:00 AMSee registration–
5K5KApr 17, 20278:30 AMSee registration–

Fees and dates are from the race's official website on the date shown below; confirm them there before you register.

Race day planning

What a typical finish looks like

A typical finisher at a 50K in Colorado runs 6:56:26, about 13:24 a mile, based on 6 races with published results. Women typically finish in 6:58:10 and men in 6:54:01.

Light and altitude

Sunrise on race morning is at about 6:21 AM, and the 25K starts at 7:00 AM.

Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.

Start location and course

Palmer Park, 3560 Maizeland Road, near the pavilion and baseball diamonds, Colorado Springs, CO

The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.

2026 results

All results

25K

105
finishers
3:20:00
median (12:52 /mi)
2:16:34
winning time
54% / 46%
women / men
median 3:20:002:17:035:19:11
Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

50K

80
finishers
6:56:26
median (13:24 /mi)
4:27:38
winning time
19% / 81%
women / men

10K

77
finishers
1:15:44
median (12:11 /mi)
45:34
winning time
51% / 49%
women / men

Aggregated from official results (Mad Moose Events) for Rattler Trail Race. Individual finisher names are not stored here.

How fast do you need to be at Rattler Trail Race?

At the 2026 25K, the fastest tenth finished in 2:41:15 or better, the top quarter in 3:06:34, and half the field in 3:20:00; the last tenth came in after 4:10:30.

At the 2026 50K, the fastest tenth finished in 5:28:53 or better, the top quarter in 6:02:42, and half the field in 6:56:26; the last tenth came in after 8:16:17.

At the 2026 10K, the fastest tenth finished in 56:47 or better, the top quarter in 1:05:00, and half the field in 1:15:44; the last tenth came in after 1:47:23.

Third place by age group, 2026 25K
AgeWomenMen
20-293:05:58n/a
30-392:35:312:32:09
40-493:17:002:53:18
50-59n/a3:12:07

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.

How fast is it?

About average for US trail 50Ks

The fastest quarter of the 2026 50K field finished under 6:02:42, against 6:08:34 in a typical US trail 50K, so times here are about average.

  • 10K: Faster than most Colorado trail 10Ks. The fastest quarter of the 2026 10K field finished under 1:05:00, against 1:08:56 in a typical Colorado trail 10K, so times here run 6 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.

Race guide

What runners should know about Rattler Trail Race, in brief, from the official race website.

Schedule and packet pickup

Packet pickup

Pickup is at Colorado Running Company, 5262 North Nevada Avenue #140, on Friday, April 16, 2027 from 4 to 6 p.m., and at the start from 6:15 a.m. on race day. A photo ID is required.

Parking and travel

Getting there

Palmer Park sits at Maizeland Road and Academy Boulevard. The start and finish are by the pavilion and ball fields.

Shirt and medal

What runners get

Every runner gets a race shirt and a finisher medal, with snacks and drinks at the finish.

Rules and FAQ

Bring a cup

Aid stations are cupless, so runners bring a reusable cup or bottle. Cutoff times apply on the longer courses, and the timing chip must be worn on the shoe.

Full details on the official race website

Facts on this page come from the race's official website (madmooseevents.com/rattler-trail-race, madmooseevents.com/run-colorado-springs), checked Sep 28, 2026. Confirm dates and fees there before you travel.

Race details

Where
Palmer Park, 3560 Maizeland Road, near the pavilion and baseball diamonds, Colorado Springs, COMap
Course
Trail
Distances
50K, Other, 10K, 5K
Editions
2026 (Apr 18, 2026)

Organize this race? Add details or a correction

Plan your race

Quick answers

When is Rattler Trail Race?
Saturday, April 17, 2027, starting at 7:00 AM.
How much does it cost?
See the registration page for current pricing.
What distances can I run?
50K, Other, 10K, 5K.
How big is it, and how fast?
In 2026, 105 runners finished the 25K; the median finish was 3:20:00 and the winner ran 2:16:34.
Is it a fast course?
The fastest quarter of the 2026 50K field finished under 6:02:42, against 6:08:34 in a typical US trail 50K, so times here are about average.
Where does it start?
Palmer Park, 3560 Maizeland Road, near the pavilion and baseball diamonds, Colorado Springs, CO.

About the race

A spring trail race on the singletrack of Palmer Park in the middle of Colorado Springs, run by Mad Moose Events. The courses gain little elevation but are rocky and technical, winding among sandstone bluffs with views over the city to Pikes Peak.