Kauai Half Marathon takes place on Sun, Sep 6, 2026 in Koloa, United States. The main route is 21.1 km.
- Date
- Sun, Sep 6, 2026
- Start
- Koloa 🇺🇸
- Distance
- 21.1 km
- Level
- Open to all
The Kauai Half Marathon is a scenic destination race that guides runners past pristine beaches, lush tropical rainforests, and the century-old Tunnel of Trees on the south shore of Kauai.
Official event pageWhat this race demands
The Kauai Half Marathon demands disciplined pacing over a 21.1-kilometer road distance in a warm tropical environment.
Aerobic endurance
Completing 21.1 kilometers requires sustained cardiovascular output and efficient energy management over a continuous effort.
Thermal resilience
Running in a tropical destination environment necessitates proper heat management and hydration strategies to maintain performance.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
1:45–2:10
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Kauai Half Marathon is 2 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper1 week · Aug 24, 2026 – Aug 30, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Aug 31, 2026 – Sep 6, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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