Dave McKay Memorial Half Marathon and 5K Run and Walk

Saturday, Aug 9, 2025 at 6:00am

Thorpe Park
191 N Thorpe Rd

On August 9th, join the 2nd oldest half marathon in Arizona sponsored by Kinney Construction Services! This year we are hosting our 48th 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 or half will receive a $34 Sweatvac Hi-Tech colorful long-sleeved shirt, admission to the FREE August 8th Fratelli's pre-race pizza party at Grand Canyon Adventures, and of course FREE digital photos!  Kid's Dash participants will get a medal. See photos and the last year's race!

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. While you will receive a chip time and finisher's medal, you will not be eligible for age division awards.

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 BBBSF Mentoring Programs that create and support one-to-one mentoring relationships that ignite the power and promise of youth.

Schedule:
Thursday, August 7th: 2:30 to 5:30 PM, Run Flagstaff early packet pickup, 204 East Route 66. 

Friday, August 8th: 5:30-7:30 PM, Packet pick-up at Grand Canyon Adventures 400 South Malpais Lane.  Free Fratellis Pizza dinner for all participants. There is a suggested $10 donation for each family member or friend who attends the dinner. 

Saturday, August 9th, RACE DAY!  
6 AM-7:15 AM: Late packet pick-up. While there will be no race day registration on-site, you can register from home before arriving.
6 AM: Early non-competitive start for half marathon walkers/runners
7:15 AM: Kid's Kilo Dash
7:30 AM: Half-marathon start
7:45 AM: 5K start

Half-marathon - Course Map

5k - Course Map

Click Here to Register

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