Hawaii · 100K · 100 K Relay · 50K
Under the Moon
Under the Moon is a 100K, 100 K Relay, 50K, 50 K Relay and 25K Relay event held in Hilo, Hawaii. It was last held on August 1, 2026 and is usually run in August; the next date hasn't been announced yet.
- Usually held
- August
- Location
- Hilo, HI
Race details
- Last held
- August 1, 2026
- Usually held in
- August
- Location
- Hilo, Hawaii
- Distances
- 100K, 100 K Relay, 50K, 50 K Relay, 25K Relay, 25 K
- Course
- 7500 ft gain
- Registration
- ultrasignup.com
- Official website
- hawaiimountainrunning.org
Registration, course & weather
- Registration status
- Registration status as last checked October 19, 2026: completed
- Start time
- 5:00 PM HST
- Course profile — 100K
- Point-to-point course; Road surface; 7500 ft gain, 5000 ft loss (estimated from third-party elevation data)
- Course profile — 50K
- Point-to-point course; Road surface; 700 ft gain, 5000 ft loss (estimated from third-party elevation data)
About the Under the Moon
Under the Moon in Hilo, HI.
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Under the Moon: common questions
- When is the Under the Moon?
- The next date hasn't been announced in the listing yet. The race is usually held in August. Check the organiser's website for the official date.
- Where is the Under the Moon held?
- In Hilo, Hawaii.
- What distances does the Under the Moon offer?
- 100K, 100 K Relay, 50K, 50 K Relay, 25K Relay and 25 K.
- How do I register for the Under the Moon?
- Registration is handled by the organiser at ultrasignup.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Under the Moon?
- Registration status as last checked October 19, 2026: completed.
- What time does the Under the Moon start?
- 5:00 PM HST.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.