August

August Half Marathon Calendar

Browse all August Half Marathons in 2025 by state and by city below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up. When you view a race, you might also find contact info if you’re having problems with your registration or need to contact the race directors. We dedicated dozens of hours every month searching for races to include in the August Half Marathons calendar. If you happen to see any half marathon not included, contact us at [email protected] to submit your race. Looking for the best half marathons in August? We answer some of your most frequently asked questions about August half marathons underneath the calendar.

August Half Marathon Calendar

Dates may be subject to alteration, please check race website.

Filter August Half Marathons

Filter August Half Marathons

Calico Racing logo
May 11, 2025
100-500 runners
Rachel, Nevada
Mahomet Half Marathon logo
August 2, 2025
1-100 runners
August 2, 2025
100-500 runners
Park City, Utah
Monsters of the Deep- 5K, 10K, and Half Marathon logo
August 2, 2025
1-100 runners
Santa Monica, California
August 2, 2025
500-1000 runners
Heber, Utah
August 2, 2025
100-500 runners
Arvada, Colorado
Truckee Half Marathon & 5K logo
August 2, 2025
100-500 runners
Truckee, California
August 2, 2025
100-500 runners
Lakeside, Arizona
Rocky Mountain Half Marathon logo
August 2, 2025
1,000-10,000 runners
Estes Park, Colorado
August 3, 2025
100-500 runners
Morrow, Ohio
August 3, 2025
1-100 runners
Belleville, Wisconsin
August 3, 2025
100-500 runners
Rockport, Massachusetts
Camarillo Marathon, Half Marathon, 10K & 5K logo
August 3, 2025
500-1000 runners
Camarillo, California
August 9, 2025
100-500 runners
Bend, Oregon
Running Between the Vines Logo
August 9, 2025
100-500 runners
Jackson, Michigan
August 9, 2025
500-1000 runners
Stillwater, Minnesota
August 9, 2025
1-100 runners
Kohler, Wisconsin
August 9, 2025
500-1000 runners
Hudson, Minnesota
August 9, 2025
1-100 runners
Madison, Wisconsin
August 10, 2025
1-100 runners
Long Beach, California

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