Hawaii · 2.4 mi swim
Waikiki Roughwater Swim
Waikiki Roughwater Swim is a 2.4 mi swim event held in Honolulu, Hawaii. Its next confirmed date is Monday, August 30, 2027. About 800 runners take part across all distances.
- Race day
- August 30, 2027
- Location
- Honolulu, HI
- Field size
- ~800 runners
Race details
- Date
- Monday, August 30, 2027
- Location
- Honolulu, Hawaii
- Distances
- 2.4 mi swim
- Field size
- About 800 runners
- Course
- Open ocean (flat water)
- Registration
- waikikiroughwaterswim.com
- Official website
- waikikiroughwater.com
About the Waikiki Roughwater Swim
A legendary 2.4-mile open-water race across Waikiki from Sans Souci Beach to the Hilton Hawaiian Village, drawing 800+ swimmers and famous as the inspiration for the Ironman swim distance.
Rankings and notes
- Rankings and awards
- Historic open-water classic (55th edition in 2026); its 2.4-mile distance inspired the Ironman swim leg; held over Labor Day weekend
- Notes
- Prestigious open water swim [next_date estimated]
More races in Honolulu
More upcoming races in Hawaii
Keep exploring
- All races in Hawaii
- 5Ks in Hawaii 26 upcoming races
- 10Ks in Hawaii 17 upcoming races
- Half Marathons in Hawaii 15 upcoming races
- Marathons in Hawaii 7 upcoming races
- Running in Honolulu 20 upcoming races
- August races in Hawaii
- Races in California 581 upcoming races
- Races in Washington 224 upcoming races
- Races in Colorado 170 upcoming races
- Races in Arizona 163 upcoming races
Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- 8 min read How to Choose Your First Marathon A practical checklist for choosing a first marathon based on course, weather, cutoff, travel, field size and support.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Waikiki Roughwater Swim: common questions
- When is the Waikiki Roughwater Swim?
- The next confirmed date is Monday, August 30, 2027.
- Where is the Waikiki Roughwater Swim held?
- In Honolulu, Hawaii.
- What distances does the Waikiki Roughwater Swim offer?
- 2.4 mi swim.
- How many people run the Waikiki Roughwater Swim?
- About 800 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Waikiki Roughwater Swim?
- Registration is handled by the organiser at waikikiroughwaterswim.com. Entry fees, caps and deadlines are set there.
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.