"City-centre triathlon in Jeju — race through iconic streets and waterways."
🏊 Swim
Ocean swim in Jeju
🚴 Bike
Bike course through Jeju
🏃 Run
Run through Jeju
Transition Details
T1/T2 are in the same location · Surface: pavement
Weather
Typical conditions in Jeju
Registration
https://www.example.com/jeju-triathlon-olympic
The Story
You come to Jeju for the racing and stay for everything else. The 1500m swim sends you into mild saltwater at 20°C — comfortable — cool on entry, forgotten after 200 metres. The 40km bike packs 448m of elevation gain — a seriously hilly course that separates climbers from time-triallists. A 10km flat run finishes what the bike started. Wind averaging 20 km/h adds an invisible dimension to the bike leg. What makes it memorable: black basalt coastline, tangerine orchards along the bike, haenyeo divers watching your swim with professional interest. The kind of race that makes you understand why Olympic distance exists.
"Jeju doesn't need to be the biggest race. It just needs to be honest. And it is."
What It Feels Like
A Olympic-distance course in Jeju that suits a wide range of athletes — accessible enough for a strong first-timer, honest enough to challenge a veteran. The city's volcanic island beauty with Korean efficiency extends to the race itself — black pork BBQ and hallabong juice.
🏊 The Swim
A 1500m ocean swim in mild saltwater at 20°C. Conditions are typically calm, though ocean swells can appear. Sight off the buoys — the open water offers few reference points.
🚴 The Bike
40km with 448m of climbing — a seriously hilly course that rewards power-to-weight over pure wattage. The climbs are the race; the descents are recovery. Come with climbing legs or come with patience.
🏃 The Run
A 10km flat run through Jeju. After the bike, flat ground feels like a gift — until the pace catches up. The run rewards negative splitting: start conservative, finish strong, pass people in the final kilometres.
💡 Insider Tips
- → Average winds of 20 km/h make aerodynamics critical on the bike. Stay low, avoid deep-section front wheels in crosswind sections, and don't chase speed into a headwind — hold power, not pace.
- → The bike has 448m of climbing — don't underestimate the cumulative toll on your legs. Keep your cadence high on the climbs and save your quads for the run. A compact crankset with a 28+ cassette is worth considering.
- → Ocean conditions can change on race morning. Practice dolphin-diving through shore break and body-surfing to shore on the return. Sight frequently — ocean swells can push you off-line without you realising.
Prepare for This Race
More Races in South Korea
FAQ
What distance is the Jeju Triathlon Olympic? +
The Jeju Triathlon Olympic is a Olympic Distance distance triathlon: 1500m swim, 40km bike, and 10km run (51.5km total) in Jeju, South Korea.
When is the Jeju Triathlon Olympic? +
Typically held in July on a Saturday.
Water temperature and wetsuit rules? +
Ocean water at 20°C average. Wetsuit rules are conditional.
How hilly is the bike course? +
448m of climbing over 40km. Profile: hilly. Drafting not allowed.
What's the weather like on race day? +
undefined–undefined°C, 42% humidity, 27% rain chance, 20 km/h winds.
Average finish time? +
Approximately 2h 30m. Varies with conditions and athlete experience.
Are you the race organizer?
Claim This RaceFree · Get featured on our homepage · Edit your race details