Flagstaff · United States

Half Marathon races near Flagstaff

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Upcoming Half Marathon races near Flagstaff

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Flagstaff · 80 km

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Recurring Half Marathon races near Flagstaff

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Flagstaff Marathon Presented by Cambium Wealth and Legacy Strategies

The Flagstaff Marathon takes place at Arizona Nordic Village, north of Flagstaff within the Coconino National Forest. Participants can select a marathon, half marathon, 10K, or Kids Kilo. All races are run on singletrack and doubletrack trails through ponderosa pine and aspen forest at approximately 8,000 feet elevation. The event is known as “The Coolest Marathon in Arizona” and typically sells out, so early registration is advised. The marathon course covers the half-marathon route twice, incorporating the altitude and trail conditions throughout. Marathon runners face a cutoff at mile 19, requiring them to reach that aid station by early afternoon to proceed. The Coconino Community College Foundation and Sundog Running host the event, with proceeds benefiting CCC Athletics, particularly the men’s and women’s cross country teams. Race results have been archived since 2006, indicating a long-standing local presence.

Elden Ridge Run

Elden Ridge Run is a 13.1-mile trail half marathon on Mt. Elden in Flagstaff, Arizona, held in the fall when the aspens along the ridge can turn gold. It begins at Sandy Seep Trailhead and follows mountain trails, featuring open meadows, ponderosa stands, technical singletrack, and a steep ascent to the summit. The race differs from a typical road half: runners encounter one aid station near mile six, must reach the summit at approximately mile five within two hours, and have a four-hour overall cutoff. The course departs the trailhead through meadows and pine forest, crosses a power line access road, turns onto Christmas Tree Trail, and then joins Elden Lookout Trail for the climb up Mt. Elden. After the summit, participants descend on the lookout tower road, link to Sunset Trail, and proceed onto New Heart Trail, with the red and orange cliffs of Little Elden becoming visible. Volunteers guide runners at several junctions, a necessary role on a course with numerous trail changes and a single official aid stop.

2026 Southwest Series - Day 4 (AZ)

RunSedona Events

RunSedona places runners among Sedona, Arizona's red rocks with 5K, 10K, and half marathon options each February. This event offers multiple distances over a weekend, not just a single race, with daytime temperatures typically between 50-60°F. The format suits many participants, including runners, joggers, walkers, families, and those seeking a winter desert race. The 5K and 10K utilize paved roads. The 10K follows an out-and-back route, while the 5K is designed for walkers and is the only distance permitting strollers. BlueWolf Events organizes the race, which has been held for over 15 years and receives significant backing from the Sedona community. Recent events have drawn close to 3,000 participants, including many first-time RunSedona entrants, numerous out-of-town runners, and a field with a majority of women. Registration includes a complimentary race-day shuttle ticket, chip timing with live results, free race photos, a Dri-Fit shirt, a HydraPak Speedcup, post-race refreshments, awards for various distances and age groups, and a post-race expo featuring local Sedona food trucks, vendors, and exhibitors.

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Other races in the next 90 days

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About Half Marathon races in Flagstaff

Flagstaff Training Notes

Flagstaff hosts 4 Half Marathon races in 2026 within 80 km of the city centre — upcoming dates, recurring series, and other races nearby, all in one place.

Flagstaff sits at 2,134 meters, so the paces you used to hit at sea level feel harder each day. Locals stack base miles through Buffalo Park, Thorpe Park, and the FUTS network, which links more than 50 miles of paved and unpaved trails. Buffalo Park gives soft surface laps and quick connections toward Mount Elden. Campbell Mesa trails make easy days feel quiet, with pine-lined singletrack and loops up to 5-6 miles. Lake Mary Road carries the simple long out-and-back. Elden Lookout Trail brings the lung check with over 2000 feet in 2.5 miles. Team Run Flagstaff, NATRA, and NAZ Elite keep the town honest. Anchor races include Flagstaff Marathon, Flagstaff 50's Endurance Runs, Taco 'Bout Fun Run, and the 4th of July Flagstaff Downtown Mile.

Flagstaff riding feels small on the road and wide open once the gravel starts. Locals use Lake Mary Road for longer intervals because the road has a big bike lane and top notch pavement. Snowbowl road, 89a, Fort Valley Road / US 180, old walnut canyon road, s cosnino rd, and Schultz Pass Rd give the regular road menu. Gravel and CX bikes open the FS-road world, with Observatory Mesa to Wing Mtn Loop, Gravel Mary, and Walnut Canyon Arizona Trail in the mix. Schultz Creek & Arizona Trail and Full Sail bring singletrack into the week. Flagstaff Biking Organization keeps the bike calendar moving. Bear Howard Gravel Race, Valley of the Sun, and Tour of the Gila sit on the anchor-event radar.

May through early November is the clean training window, and September and October are the sweet spot for mountain biking. Summer gives locals a chance to escape the sweltering heat and enjoy cooler weather, but July through September brings monsoon season, with July and August as the wettest months. Warm summer nights are very uncommon, so early Z2 and evening intervals both work. Winter changes the deal fast because Flagstaff averages over 100 inches of snow each year and the snowy months usually run late November to March. Team Run Flagstaff moves winter practice to the Northern Arizona University Indoor Track, and riders start picking windows instead of assuming every climb is ready.