10 Best Marathons in Alaska for 2025

From Skagway to Wrangell to Fairbanks to Kenai to Anchorage, and more.

Did you know that Alaska’s Equinox Marathon is considered one of North America’s toughest marathons, with over 3,285 feet of elevation gain? As an avid trail runner and marathon lover, I’m excited to guide you through Alaska’s most spectacular running events.

These aren’t just races – they’re adventures through glacial valleys, along pristine coastlines, and under the midnight sun. Let’s explore each unique marathon in detail!

Looking for a different state? Select one below:

What are the Best Marathons in Alaska?

Here are the best marathons in Alaska:

Duff’s Skagway Marathon

Skagway | Jun 8, 2024

Course Type: Hilly, Road

Field Size: 170 participants across three races

Price Range: $50-$60

The Skagway Marathon traces the footsteps of Gold Rush prospectors through some of Alaska’s most historic terrain. Starting in downtown Skagway, runners follow the famous Gold Rush Trail, climbing through the spectacular White Pass with breathtaking views of the Lynn Canal. The course features a moderate elevation gain as it winds through historic landmarks and past century-old artifacts. What makes this marathon special is its perfect blend of history and natural beauty – you’ll run the same paths as the stampeders of 1898, all while enjoying modern amenities and well-maintained trails. The race typically takes place in early June when temperatures are ideal and wildflowers paint the landscape.

Bearfest Marathon

Wrangell | Jul 28, 2024

Course Type: Rolling Hills, Road

Elevation Gain: 200 feet

Price Range: $50-$65

Wrangell’s Bearfest Marathon offers perhaps the most uniquely Alaskan experience of all the state’s races. Coinciding with the annual Bearfest celebration, this marathon takes runners through prime bear country along the stunning southeastern coastline. Prior to the race, participants receive essential bear safety briefings, making this not just a running event but an immersive wildlife experience. The course follows coastal paths with incredible ocean views, and runners often spot seals, eagles, and yes – sometimes bears! The community transforms the race into a cultural celebration, with local art, music, and fresh seafood adding to the festive atmosphere.

Equinox Marathon

Fairbanks | Sep 21, 2024

Course Type: Hilly, Mostly on Trails

Elevation Gain: 3285 feet (1001m)

Price Range: Solo $80-$145, Relay Team $240-$420

Known as Alaska’s ultimate running challenge, the Fairbanks Equinox Marathon has earned its reputation as one of North America’s toughest marathons. Taking place in September during the fall equinox, this race features an impressive 3,285 feet of elevation gain, including the grueling ascent of Ester Dome. Runners tackle single-track trails, gravel roads, and technical descents while enjoying spectacular views of the Tanana Valley. The autumn timing means participants run through a landscape ablaze with fall colors, though they should be prepared for any weather conditions – from sunshine to snow. This isn’t just a marathon; it’s a test of both physical and mental endurance.

Kenai River Marathon

Kenai | Sep 29, 2024

Course Type: Rolling Hills, Road/Pavement

Elevation Gain: 467 feet (142m)

Field Size: 24 participants

The Kenai River Marathon showcases the best of Alaska’s famous salmon runs and river landscapes. Following the turquoise waters of the Kenai River, runners enjoy a relatively flat course with consistent views of the river’s famous fishing spots. The race takes place during peak salmon running season, offering the unique experience of watching fishermen landing their catch as you run past. The course winds through spruce forests and along riverside trails, with occasional glimpses of the snow-capped Kenai Mountains. Cool ocean breezes keep runners comfortable, while the well-maintained paths make this one of Alaska’s more accessible marathons.

Girdwood Marathon

Anchorage | Oct 5, 2024

Course Type: Very Steep Trail

Elevation Gain: 3,964 feet

Field Size: 193 participants

Price Range: +$40

Set against the dramatic backdrop of Mount Alyeska, the Girdwood Marathon offers runners a true mountain valley experience just 40 minutes from Anchorage. The course weaves through the Girdwood Valley, combining technical trail sections with developed paths and offering stunning views of hanging glaciers and alpine meadows. Runners frequently spot moose and eagles along the course, adding to the wild Alaska experience. The race benefits from its proximity to Alyeska Resort, offering participants excellent accommodation options and post-race amenities, including the aerial tram for supporters who want to cheer from above.

Prince of Wales Island Marathon

Craig | May 24, 2025

Course Type: Very Hilly, Road/Pavement

Elevation Gain: 2108 feet (642m)

Field Size: Cap of 350 participants

Price Range: $75

This unique island marathon gives runners a chance to experience Alaska’s largest island while competing in an intimate race setting. The course winds along the island’s scenic coastline, passing through small fishing communities and temperate rainforest. What sets this marathon apart is its remote location and small field size, creating an atmosphere of camaraderie among participants. Runners often spot whales and sea lions from the coastal sections of the course, while the island’s famous totem poles mark significant points along the route. The local community turns out in force to support runners, offering a genuine taste of Alaska island life.

Anchorage Mayor’s Marathon

Anchorage | Jun 21, 2025

Course Type: Hilly, Road/Pavement

Elevation Gain: 842 feet (256m)

Field Size: 742 participants

Price Range: $99-$119

One of Alaska’s largest and most popular marathons, the Mayor’s Marathon showcases the best of Anchorage’s extensive trail system and urban beauty. The course begins at Bartlett High School and takes runners through the city’s extensive green belt, along the Tony Knowles Coastal Trail, and through various parks and neighborhoods. What makes this marathon special is its perfect blend of urban convenience and wilderness exposure – runners might spot a moose or bear despite being within city limits. The race typically occurs during the summer solstice, taking advantage of the longest day of the year and offering the unique experience of running under the midnight sun.

King Salmon Marathon

Cordova | Jul 19, 2025

Course Type: Mostly Flat, Mostly on Road/Pavement

Elevation Gain: 315 feet (96m)

Field Size: 14 participants

Price Range: $65-$75

Cordova’s Alaska Salmon Run celebrates the region’s rich fishing heritage while offering runners a challenging coastal marathon experience. The course follows the copper river delta, famous for its premium salmon, and takes runners through a landscape where glaciers meet the sea. What makes this race unique is its timing with the salmon season – runners pass fishing boats and processing plants in full swing, offering a glimpse into Alaska’s fishing culture. The route features stunning views of the surrounding Chugach Mountains and Prince William Sound, while the small-town atmosphere ensures excellent local support and fresh seafood at the finish line.

Juneau Marathon

Juneau | Jul 26, 2025

Course Type: Rolling Hills, Road/Pavement

Elevation Gain: 1001 feet (305m)

Field Size: 85 participants

Price Range: $85-$95

The capital city’s marathon offers runners a perfect blend of urban convenience and natural beauty. Starting near the Mendenhall Glacier, the course takes participants along Juneau’s waterfront, past the Capitol building, and through neighborhoods with views of the Inside Passage. What sets this marathon apart is its accessibility to glacier views and whale watching opportunities – runners frequently spot humpback whales breaching in the channel during the coastal portions of the race. The course delivers a balanced mix of gentle hills and flat sections, all while showcasing the best of Southeast Alaska’s rainforest environment.

Humpys Marathon – Anchorage RunFest

Anchorage | Aug 17, 2025

Course Type: Rolling Hills, Road/Pavement

Elevation Gain: 823 feet (250m)

Capping off the summer running season, Anchorage RunFest transforms the city into a celebration of running culture. The marathon course utilizes Anchorage’s extensive trail system, including parts of the Chester Creek Trail and Campbell Creek Trail. What distinguishes this event is its festival atmosphere – the weekend includes multiple race distances, a health fair, and family activities. The course offers views of the Chugach Mountains and Cook Inlet, while staying primarily on paved trails and roads, making it one of Alaska’s more accessible marathons. The late-summer timing means runners enjoy moderate temperatures and the beginning of fall colors.

Why Run a Marathon in Alaska?

Alaska’s marathons offer a unique combination of challenges and natural beauty that you simply won’t find anywhere else. The state’s diverse terrain, from coastal paths to mountain trails, provides runners with an unparalleled experience. During the summer months, you can run under the midnight sun, while the shoulder seasons offer spectacular views of fall colors or spring wildflowers.

What makes these races special:

• Experience running conditions under the midnight sun
• Encounter diverse wildlife and pristine wilderness
• Challenge yourself with varied terrain and elevation changes
• Enjoy smaller, more intimate race experiences
• Take advantage of perfect summer running temperatures

Best Time to Run Marathons in Alaska

The peak marathon season in Alaska runs from May through September, when temperatures are mild and daylight hours are long. Each season offers its own unique running experience:

• Summer (June-August): Optimal temperatures and extended daylight
• Fall (September): Spectacular autumn colors and crisp running conditions
• Spring (May): Wildflowers and moderate temperatures
• Winter: Unique arctic challenges for the adventurous

Essential Tips for Running Alaskan Marathons

Gear Recommendations:

• Layer-appropriate clothing
• Trail running shoes
• Bear spray (where required)
• Weather protection
• Navigation tools

Safety Considerations:

• Wildlife awareness
• Weather preparedness
• Trail safety protocols
• Communication devices
• Emergency contacts

Race Calendar and Registration

Most Alaskan marathons require advance registration due to limited entries. Book your spot early and consider the following:

• Registration typically opens 6-8 months in advance
• Many races offer early bird discounts
• Some events require qualification times
• Package deals may be available
• Travel arrangements should be made well in advance

Conclusion

From the historic trails of Skagway to the challenging peaks of the Equinox Marathon, Alaska’s running events offer something truly special for every marathon enthusiast.

These 10 incredible races aren’t just about crossing a finish line – they’re about experiencing the raw beauty and untamed spirit of America’s last frontier.

Ready to take on your next great running adventure?

Pick your race, lace up those shoes, and join in on an unforgettable Alaskan marathon experience.

Row Brown

Row Brown is the founder of Refresh Row. He is a keen marathon runner, his favorite being the London Marathon. He’s now set himself the mission of Running the Entire Length of Spain, which is scheduled for late 2024.