Gdansk Triathlon 70.3
Half Ironman / 70.3 Independent

Gdansk Triathlon 70.3

Gdansk, Poland · SEP

🏊 1900m
🚴 90km
🏃 21.1km
50

Triathlon Index Score

Challenging

Average Finish Time 05:30:00
Total Finishers 1049
Temperature 13°C
Water Temperature 12°C
Bike Elevation ↑1165m
Established 2016

"Cold-water ocean swim and hilly bike course in the rugged beauty of Gdansk."

🏊 Swim

Distance 1900m
Water ocean (open-water)
Water Temp 12°C
Wetsuit conditional

Ocean swim in Gdansk

🚴 Bike

Distance 90km
Elevation ↑1165m
Profile hilly
Drafting Non-drafting

Hilly bike course around Gdansk

🏃 Run

Distance 21.1km
Elevation ↑174m
Surface road
Topology out-and-back

Run through Gdansk

Transition Details

T1 — Swim → Bike
T2 — Bike → Run

T1/T2 are in the same location · Surface: pavement

Weather

Air Temp 13°C
Humidity 38%
Rain Chance 23%
Wind 10 km/h

Typical conditions in Gdansk

Registration

Registration Opens Invalid Date
Entry Cost €427
Time Limit 8.5h
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The Story

The Gdansk Triathlon 70.3 is what happens when a city with Hanseatic amber-coast racing hosts the world's most raced long-distance triathlon. Race morning in Gdansk starts early. The 1.9km swim sends you into frigid ocean at 12°C — cold enough to steal your breath on entry. It's long enough that a poor start costs real time, short enough that strong swimmers can build a genuine lead. The 90km bike is the defining leg: 1165m of elevation gain across a mountainous course that separates those who trained for this specific distance from those who just showed up fit. Ninety kilometres of climbing changes the race equation entirely. The 21.1km run rolls through Gdansk, adding 174m of climbing to legs already tested by the bike. The undulations are psychological as much as physical — each rise feels larger than it is when you've been racing for four hours. The city brings its own dimension: Baltic shore, Motława River run, medieval crane buildings as course landmarks. 70.3 miles of honest racing. No shortcuts, no easy legs, no forgiveness for a bad plan.

"People think 70.3 is half an Ironman. Race one in Gdansk and tell me it feels like half of anything."

Two-time finisher — Finish line, Gdansk Triathlon 70.3

What It Feels Like

A 70.3 that reflects Gdansk: Hanseatic amber-coast racing. It suits experienced 70.3 athletes who want a course that fights back. This isn't a PB course — it's a character-building one. Race it once and you'll understand why 70.3 is the distance athletes come back to, year after year.

🏊 The Swim

A 1.9km ocean swim in frigid saltwater at 12°C — long enough that sighting discipline and stroke efficiency matter more than raw speed. Ocean swell can push you off-line; sight every 8-10 strokes. The salt buoyancy helps body position but stings the eyes. Exit through the surf and run to T1.

🚴 The Bike

90km with 1165m of climbing — a mountainous bike course that makes the 90km the race's decisive leg. Power-to-weight matters more than pure wattage. The climbs test your legs; the descents test your nerve. Come with a compact crankset, climbing legs, and the discipline to save something for 21.1km of running.

🏃 The Run

21.1km of rolling Gdansk terrain. After the bike, each rise lands differently than it would on fresh legs. The rollers add a psychological dimension — the finish always feels further than the markers suggest. Quick turnover, short stride on the climbs, and trust your fuelling from the bike.

💡 Insider Tips

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FAQ

What distance is the Gdansk Triathlon 70.3? +

The Gdansk Triathlon 70.3 is a Half Ironman / 70.3 distance triathlon: 1900m swim, 90km bike, and 21.1km run (113km total) in Gdansk, Poland.

When is the Gdansk Triathlon 70.3? +

Typically held in September on a Saturday.

Water temperature and wetsuit rules? +

Ocean water at 12°C average. Wetsuit rules are conditional.

How hilly is the bike course? +

1165m of climbing over 90km. Profile: hilly. Drafting not allowed.

What's the weather like on race day? +

undefined–undefined°C, 38% humidity, 23% rain chance, 10 km/h winds.

Average finish time? +

Approximately 5h 30m. Varies with conditions and athlete experience.

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