Dave McKay Memorial Half Marathon & 5K

Saturday, August 10, 2024 • Flagstaff, AZ • Course Map

An annual race that is part of the Flagstaff Summer Running Series and benefits the local Big Brothers & Big Sisters of Flagstaff, the Dave McKay Memorial Half Marathon offers a hilly, challenging 13.1 miles along a combination of paved city streets, dirt roads and single-track mountain trails.

The half-marathon and 5K, both of which start and finish at Wheeler Park in downtown Flagstaff, take runners into nearby Thorpe Park and are open to both runners and walkers.

Runners considering this race need to be ready for high altitudes — the race course lies at an elevation of about 7,000 feet above sea level, and the course takes runners into the hilly mountain areas just outside the city in Thorpe Park, up to Observatory Mesa and along the Flagstaff Urban Trail system.

Several hundred runners cross the finish line in both races combined each year, and the race also hosts a Kids’ Dash race from Wheeler Park to Thorpe Park.

The race is now named the Dave McKay Memorial Half Marathon, in honor of the man who founded Big Brothers, Big Sisters back in 1967.

45th annual Dave McKay Memorial Half Marathon & 5K takes place

Race Weather & Climate

Located in central northern Arizona, about an hour and a half’s drive south from the Grand Canyon and roughly 145 miles north of Phoenix, Flagstaff typically sees mild to moderately warm weather in August, which has brought record temperatures here as low as 247deg;F (in 1968) and as high as 93°F (in 1902).

On race day (Aug. 10), the average low is 50ºF and the average high is 80ºF.

Past Results

Course Map

See the race route map for the Dave McKay Memorial Half Marathon here.

Starting Time

see race website


  • $70 and up for the half marathon
  • $40 and up for the fun run
  • $40 and up for the virtual run


To reserve your spot in the 2024 running of Flagstaff’s Dave McKay Memorial Half Marathon or 5K race, register online at RunSignUp.com here.

Official Race Website


See more races in: August, Arizona

3 comments… add one
  • Shane September 14, 2019, 4:47 pm

    Hello I’m the new owner and race director for the Tucson marathon. Just checking in to see if you would be interested in a bib swap. Would love to have someone from your way come down and run our event Dec 7th. Please let me know if interested? Also have you got a date for next year’s race set? I would love to run yours next year. Thanks Shane

  • Sarah Cortez August 15, 2019, 12:30 pm

    I was wondering when the 2019 half marathon results will be posted?
    Thank you!
    Sarah Cortez


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