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CITY TO SKY TRAIL RACES 2026

Date
Sunday, October 18, 2026
Start time
7:00 AM start (Denver)
Entry fee
From $145
Included with entry
Includes a shirt
Fundraising
Takes optional donations when you register
Register on RunSignup

Registration is open.

Likely to sell out. 180 finished the Ultra in 2025, and this year's cap is 175.

We earn a small commission when you register through this link, at no cost to you. Details

Official race website

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Events and entry fees

EventDistanceWhenEntry feeCap
City to Sky 50KUltraOct 18, 20267:00 AM$155175
City to Sky 25KOtherOct 18, 20268:15 AM$145125

Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.

Race day planning

Entry fee schedule

  • City to Sky 50K: $155 until Oct 14.
  • City to Sky 25K: $145 until Oct 14.

Online registration closes Oct 14, 2026, unless the race fills first.

Light and altitude

Sunrise on race morning is at about 7:56 AM, and the City to Sky 50K starts at 7:00 AM. The start sits about 4,100 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.

Start location and course

Dornblaser-Lewis and Clark Stadium – University of Montana, Missoula, MT 59802

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

City to Sky 50K

180
finishers
7:30:55
median (13:40 /mi)
4:55:33
winning time
40% / 60%
women / men
median 7:30:555:07:1310:47:46
Finish times, fastest to slowest. Each bar is a slice of the field; the dashed line is the median.

City to Sky 25K

101
finishers
3:35:04
median (12:39 /mi)
2:02:26
winning time
65% / 35%
women / men

Aggregated from official results (Competitive Timing) for CITY TO SKY TRAIL RACES. Individual finisher names are not stored here.

How fast do you need to be at CITY TO SKY TRAIL RACES?

At the 2025 City to Sky 50K, the fastest tenth finished in 5:56:54 or better, the top quarter in 6:42:59, and half the field in 7:30:55; the last tenth came in after 9:30:06.

At the 2025 City to Sky 25K, the fastest tenth finished in 2:45:38 or better, the top quarter in 3:06:40, and half the field in 3:35:04; the last tenth came in after 4:42:17.

Third place by age group, 2025 City to Sky 50K
AgeWomenMen
Under 20n/a7:05:23
20-296:25:125:09:55
30-396:04:425:45:46
40-497:15:516:01:42
50-59n/a7:33:47

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 2025.

Finishers by year

Up 173 percent since 2023.

All events combined, from official results.

CITY TO SKY TRAIL RACES Ultra year by year

From 2023 to 2025, the field went from 103 to 180 finishers, and the median time rose from 7:02:25 to 7:30:55.

YearFinishersMedianFastest tenthWinner
2025180 (+1%)7:30:55under 5:56:544:55:33
2024178 (+73%)7:27:07under 6:01:334:13:57
20231037:02:25under 5:52:324:53:16

From each year's official results for the Ultra; virtual options are left out.

Typical race-day weather

Around October 18 the day usually runs from 36°F at dawn to 52°F in the afternoon, with measurable rain on about 27% of days. Cold snaps dip to 26°F and hot years reach 65°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
Dornblaser-Lewis and Clark Stadium – University of Montana, Missoula, MT 59802Map
Course
Trail
Start elevation
About 4,100 feet
Included with entry
Relaxed Fit, Crew Neck FINISHER T-Shirt
Donations
Accepted when you register
Distances
Ultra, Other
Editions
2026 (Oct 18, 2026), 2025 (Oct 19, 2025), 2024 (Oct 20, 2024), 2023 (Oct 15, 2023)

Organize this race? Add details or a correction

Plan your race

Quick answers

When is CITY TO SKY TRAIL RACES?
Sunday, October 18, 2026, starting at 7:00 AM.
How much does it cost?
Entry starts at $145 before processing fees.
When does registration close?
Online registration closes Oct 14, 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.
Can I donate to a cause when I register?
Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
What distances can I run?
Ultra, Other.
How big is it, and how fast?
In 2025, 180 runners finished the City to Sky 50K; the median finish was 7:30:55 and the winner ran 4:55:33.
Does it sell out?
It can. 180 runners finished the Ultra in 2025, close to this year's cap of 175, so register early.
Where does it start?
Dornblaser-Lewis and Clark Stadium – University of Montana, Missoula, MT 59802.

From the organizers

This unique trail race starts and finishes near Missoula’s University District and features multiple mountain summits totaling 8,000+ feet of vertical elevation and exploring many of Missoula’s iconic open space and conservation lands circumnavigating the Pattee Creek Watershed. It highlights the best of Missoula’s open space and urban recreation areas and boasts less than two miles of pavement.