IRONMAN 70.3 Weymouth takes place on Sun, Sep 20, 2026 in Weymouth, United Kingdom. The main route is 113 km.
- Date
- Sun, Sep 20, 2026
- Start
- Weymouth 🇬🇧
- Distance
- 113 km
- Climbing
- 1,400 m
- Level
- Open to all
Experience IRONMAN 70.3 Weymouth: a 1.2-mile ocean swim, a 56-mile rolling bike ride through Dorset's countryside, and a flat 13.1-mile run along Weymouth's scenic esplanade.
Official event pageWhat this race demands
IRONMAN 70.3 Weymouth requires sustained output across a 1.2-mile ocean swim, a 56-mile rolling bike leg, and a 13.1-mile flat run.
Swim endurance
The 1.2-mile ocean swim demands early cardiovascular engagement and strong sighting mechanics in open water before transitioning to the bike.
Rolling bike power
The 56-mile bike ride through the Dorset countryside features rolling terrain that requires disciplined pacing to preserve leg strength for the run.
Flat run durability
The 13.1-mile run along Weymouth's esplanade is flat, demanding consistent mechanical repetition and muscular endurance on fatigued legs.
Averaging 60 to 90 grams of carbohydrates per hour is recommended to sustain energy across the expected multi-hour duration of the race.
Your road to race day
Race day at IRONMAN 70.3 Weymouth is 4 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak1 week · Aug 24, 2026 – Aug 30, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Aug 31, 2026 – Sep 13, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Sep 14, 2026 – Sep 20, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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