Arizona · 140 Mile · 100 Mile
Route 66 UltraRun
Route 66 UltraRun is a 140 Mile and 100 Mile event held in Historic Route 66, Arizona. Its next confirmed date is Saturday, November 14, 2026. About 8 runners take part across all distances.
- Race day
- November 14, 2026
- Location
- Historic Route 66, AZ
- Field size
- ~8 runners
Race details
- Date
- Saturday, November 14, 2026
- Location
- Historic Route 66, Arizona
- Distances
- 140 Mile, 100 Mile
- Field size
- About 8 runners
- Course
- Point-to-point, net downhill: starts ~5,258 ft in Seligman, peaks 5,565 ft near mile 24, climbs again over Sitgreaves Pass (~3,593 ft, mile 111), finishes 477 ft at Topock on the Colorado River
- Registration
- ultrasignup.com
- Official website
- route66ultrarun.com
Registration, course & weather
- Registration status
- Registration status as last checked September 25, 2026: open
- Entry fee
- Listed fee for the longest distance, $495 (from ultrasignup.com, checked September 25, 2026)
- Start time
- 7:00 AM MST
- Course profile — 140 Mile
- Point-to-point course; Road surface; 4000 ft gain, 9000 ft loss (official course data)
- Course profile — 100 Mile
- Point-to-point course; Road surface
- Typical race-day weather
- about 52°F at the start, 43% humidity, 8 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 25, 2026)
About the Route 66 UltraRun
A point-to-point crewed ultramarathon along the longest unbroken stretch of historic Route 66 in Arizona: the original 140-mile race from Seligman to Topock66 on the Colorado River, plus a new-for-2026 100-mile CenturyRun from Peach Springs to Topock66, with a 60-hour and 48-hour cutoff respectively and no intermediate cutoffs.
More upcoming races in Arizona
Keep exploring
- All races in Arizona
- 5Ks in Arizona 117 upcoming races
- 10Ks in Arizona 72 upcoming races
- Half Marathons in Arizona 54 upcoming races
- Marathons in Arizona 15 upcoming races
- November races in Arizona
- Races in California 619 upcoming races
- Races in Utah 120 upcoming races
- Races in Nevada 71 upcoming races
- Races in New Mexico 66 upcoming races
Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Route 66 UltraRun: common questions
- When is the Route 66 UltraRun?
- The next confirmed date is Saturday, November 14, 2026.
- Where is the Route 66 UltraRun held?
- In Historic Route 66, Arizona.
- What distances does the Route 66 UltraRun offer?
- 140 Mile and 100 Mile.
- How many people run the Route 66 UltraRun?
- About 8 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Route 66 UltraRun?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Route 66 UltraRun?
- Registration status as last checked September 25, 2026: open. Listed fee for the longest distance, $495 (from ultrasignup.com, checked September 25, 2026).
- What time does the Route 66 UltraRun start?
- 7:00 AM MST.
- What is race-day weather usually like at the Route 66 UltraRun?
- about 52°F at the start, 43% humidity, 8 mph wind (based on the 2025 race day, measured near the city center rather than the exact start line; Open-Meteo, checked September 25, 2026).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.