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70.3

IRONMAN 70.3 Gdynia

Sunday, 19 July 2026

IRONMAN 70.3 Gdynia is a 1.9 km freshwater swim, 90 km bike, and 21.1 km run where a moderate day (15–22°C) and a steady NW wind make pacing and hydration the key to staying smooth.

Air
15–22°
typical
Wind
5.5 NW
prevailing
Water
typical — confirm
Bike climb
Fueling — per hour
90 g
carbs
750 mg
sodium
650 ml
fluid
Baseline for a ~5.5 h finish, 70 kg athlete, moderate conditions.

Typical 10-year conditions, not a forecast. Water temperature and the wetsuit ruling are set on race morning — check the IRONMAN race guide →

Worlds qualification — slots TBAsee who qualified →
Course map coming soon for this race.
T1 — swim to bike

Plan a fast, efficient swim-to-bike transition: set everything up so you can put on gear without thinking (helmet, sunglasses if you use them, and bottles/checks). When you mount, accelerate gradually for the first few minutes to lock into your target power/effort—don’t chase early surges. Use the opening stretch to get your cadence comfortable and your body position stable, then settle into a rhythm before focusing fully on nutrition and hydration.

During the bike

The bike is 90 km with an elevation profile listed as unknown, so ride by feel and output consistency rather than trying to “guess” a hill strategy. With wind from the NW at about 5.5 m/s, expect it to influence handling on open sections and create headwind/tailwind variability—stay smooth and avoid over-correcting your steering. Early on, take in your first nutrition and fluid so you’re never trying to catch up later; follow your fueling targets of 90 g carbs, 750 mg sodium, and 650 ml fluid per hour (adjust if your stomach tells you to go slightly lighter at first, but don’t abandon the plan). During the ride, keep sipping consistently and take calories before you feel hungry, especially if the wind makes you feel colder early and hotter later.

Closing notes

Ride for consistency: control effort in the first portion, then execute steady fueling from early—wind can make you either burn too hot or underfuel.

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Weather is a 10-year climatology (typical, not a forecast). Course tracks are approximate, derived for planning — verify against the official course. Maps © OpenStreetMap. Not affiliated with or endorsed by the IRONMAN Group.