Alaska Ultramarathons
10 upcoming ultras across Alaska, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in Alaska
Alaska has 10 upcoming ultras over the next 12 months. Among complete calendar months, June 2027 has the most listed races, with 4. Most are around Anchorage, Big Lake, Homer. The next one is Flow Through the Snow Challenge on November 15 in Anchorage.
- Nov 20261 race
- Feb 20272 races
- Mar 20271 race
- Jun 20274 races
- Aug 20272 races
November 2026
- Sun 11/15Flow Through the Snow ChallengeAnchorage, AK · 75 Miles · 250 Miles · register ↗
February 2027
- Sat 2/13Susitna 100Big Lake, AK · 100 Mile · register ↗
- Sun 2/14Little Su 50KBig Lake, AK · 50K · register ↗
March 2027
- Sat 3/13Homer EpicHomer, AK · 100K · 50K · register ↗
June 2027
- Fri 6/4Tsalteshi Backyard UltraSoldotna, AK · Timed · register ↗
- Sat 6/19Denali100KAlpine Creek, AK · 100K · register ↗
- Sat 6/19Denali135Paxson, AK · 135 Miles · register ↗
- Sat 6/19Denali50KMaclaren Summit, AK · 50K · register ↗
August 2027
- Sat 8/7Drew's Angel Creek 50Fairbanks, AK · 50 Mile · 50K · register ↗
- Sat 8/21Anchorage RunFestAnchorage, AK · 49K · Marathon · Half Marathon · 5K · 1 Mile · from $25 · registration closed · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
More Alaska: Half Marathons · 5K Races · 10K Races · All Alaska races · Browse by state