IRONMAN 70.3 Swansea takes place on Sun, Jul 11, 2027 in Swansea, United Kingdom. The main route is 113.1 km.
- Date
- Sun, Jul 11, 2027
- Start
- Swansea 🇬🇧
- Distance
- 113.1 km
- Level
- Open to all
Your 40-week plan to IRONMAN 70.3 Swansea
The Base phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
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IRONMAN 70.3 Swansea features a 1.9km swim in the Prince of Wales Dock, a 90km bike course through the Gower Peninsula, and a 21.1km run along Swansea Bay.
What this race demands
IRONMAN 70.3 Swansea requires sustaining high output across a 1.9km swim, a 90km bike leg through the Gower Peninsula, and a 21.1km run along Swansea Bay.
Aerobic endurance
The combined 113.1 km distance across three distinct disciplines demands a deep aerobic base and efficient pacing to prevent premature fatigue.
Multi-sport transition
Racing across swimming, cycling, and running consecutively requires the muscular adaptability to transition effectively from horizontal to vertical movement patterns.
A continuous intake of 60 to 90 grams of carbohydrates per hour is required to sustain energy levels across the multi-hour duration.
Your road to race day
Race day at IRONMAN 70.3 Swansea is 40 weeks away. This is how a coach divides that time. The first phase starts now.
01Base28 weeks · Oct 5, 2026 – Apr 18, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Apr 19, 2027 – May 30, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · May 31, 2027 – Jun 20, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Jun 21, 2027 – Jul 4, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Jul 5, 2027 – Jul 11, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is IRONMAN 70.3 Swansea?
IRONMAN 70.3 Swansea takes place on Sun, Jul 11, 2027 in Swansea, United Kingdom.
How long is IRONMAN 70.3 Swansea?
The main route is 113.1 km.
What does IRONMAN 70.3 Swansea demand?
IRONMAN 70.3 Swansea requires sustaining high output across a 1.9km swim, a 90km bike leg through the Gower Peninsula, and a 21.1km run along Swansea Bay.
Who is IRONMAN 70.3 Swansea for?
IRONMAN 70.3 Swansea is open to all participants.
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