Dave McKay Memorial Flagstaff Half Marathon & 5K Flagstaff, AZ   Aug 9, 2025

Join the 2nd oldest half marathon in Arizona sponsored by Kinney Construction Services! We are hosting our annual race on our challenging and breathtakingly beautiful course. All Half Marathon participants will get a commemorative finisher’s medal similar to last year’s popular design. Both 5k and half will receive a Sweatvac Hi-Tech colorful long-sleeved shirt, admission to the FREE Fratelli’s pre-race pizza party at Grand Canyon Adventures, and of course FREE digital photos! Kid’s Dash participants will get a medal.

Our beautiful course starts at Thorpe Park and climbs the steep urban trail onto Observatory Mesa (where astronomers discovered Pluto) and follows dirt roads on with spectacular views of the San Francisco Peaks. Elevations range between 6957 ft at the start, to 7731 ft near the 7.5 mile mark! 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!!!! You will easily make up the time over the rest of the course! The 5K is also on Observatory Mesa. ALL proceeds benefit Big Brothers Big Sisters of Flagstaff Mentoring Programs that create and support one-to-one mentoring relationships that ignite the power and promise of youth.