In 17 days · Sat, Aug 8, 2026
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Saturday, August 8th, 2026
Actual Course - Thorpe Park Flagstaff, Flagstaff AZ
Half · 5K
About this race
Race Overview
On August 8th, join Flagstaff's oldest race, and the 2nd oldest half marathon in Arizona sponsored by Kinney. This year we are hosting our 49th annual race on our challenging and breathtakingly beautiful course.
- Special Medal: Only half marathon participants will get a commemorative finisher's medal that honors Route 66's 100th anniversary.
- Race Swag: Both 5k or half participants will receive a $34 Sweatvac Hi-Tech colorful long-sleeved shirt, free digital race photos, and admission to the FREE August 7th Fratelli's pre-race pizza party.
- Kid’s Dash: Participants will get a medal.
- Race Photos: See photos from last year’s race!
Accessibility and Participation
The Big Brothers Big Sisters of Flagstaff Half Marathon and 5K are walker-friendly events! Those who would like to take their time on our beautiful but challenging half-marathon course, there is a 6 AM start.
- Timeliness: You will receive a chip time and finisher's medal, but will not be eligible for age division awards if taking this option.
- No Dogs: For many reasons, we do not allow dogs on the course during the race.
Course Details
Our beautiful course starts at Thorpe Park and climbs the steep urban trail onto Observatory Mesa (where astronomers discovered Pluto) and follows dirt roads with spectacular views of the San Francisco Peaks.
- Elevation: Ranges between 6957 ft at the start, to 7731 ft near the 7.5 mile mark!
- Pacing Advice: Most of the climbing is done over the first 1.25 miles, so pace yourself. If you are from lower elevations, heed the race director's advice and power walk!
- 5K Course: The 5K is also on Observatory Mesa.
- Fundraising: ALL proceeds benefit BBBSF Mentoring Programs that create and support one-to-one mentoring relationships that ignite the power and promise of youth.
Additional Features
New for this year, we are also hosting a split the pot fundraiser, see details below!
The race is also part of the 22nd annual Flagstaff Running Series value package of five of Flagstaff's most iconic foot races.
- Series Package: You can save big on the Series package of races by registering for one-stop shopping before June 14th at Flagstaff Running Series.
Partner Race
OCTOBER 10th SOULSTICE MOUNTAIN TRAIL RUN 30K/18K/10K
Course map
Train with a club
Run clubs near Flagstaff to train with before race day.
See all run clubs near Flagstaff →Suggested Races
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