Desert Solstice 100 Mile
Desert Solstice 100 Mile is an elite invitational track ultra in Phoenix, designed for precise pacing, fast splits, records and national-team standards.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 23, 2026.
Quick facts
- Saturday start on December 19, 2026
- Elite track ultramarathon
- Recognized 100-mile target
- Record-focused invitational field
2026 Desert Solstice 100 Mile registration
Registration for the 2026 Desert Solstice 100 Mile runs through the official registration page at aravaiparunning.com.
About the Desert Solstice 100 Mile
The 100-mile mark is a separately recognized race target within the 24-hour invitational, with strict entry standards and precise lap timing.
Course
Runners circle a standard track at Camelback High School, eliminating hills while making pacing, lane etiquette and mental focus decisive.
Race-day weather
December is usually cool and dry, though daytime sun, nighttime chill and exposure on the track create meaningful swings.
Past Desert Solstice 100 Mile dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, December 19, 2026 | Upcoming | — |
| 2025 | — | Completed | Open results |
| 2024 | — | Completed | Open results |
Desert Solstice 100 Mile FAQ
When is the Desert Solstice 100 Mile?
The 2026 Desert Solstice 100 Mile is on Saturday, December 19, 2026.
How do I register for the Desert Solstice 100 Mile?
Register for the Desert Solstice 100 Mile through the official registration link: marathonscout.com/go/desert-solstice-100-mile/register. It opens the race registration page at aravaiparunning.com.
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