Ironman 70.3 Weymouth

SEP

2026

Take on IRONMAN 70.3 Weymouth, a half distance triathlon set along the stunning Jurassic Coast. Swim in the sea, bike through rolling Dorset countryside, and finish with a flat esplanade run in a scenic World Championship qualifier.

Sun 20 Sep 2026

Weymouth, South West (England)

Website

1.2-Mile Ocean Swim 13.1-Mile Run 56-Mile Rolling Bike Ride

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IRONMAN 70.3 Weymouth - Overview

IRONMAN 70.3 Weymouth is a half-distance triathlon held in Weymouth, United Kingdom on September 20, 2026. The event is Flex90 eligible and serves as a qualifier for the IRONMAN 70.3 World Championship. The Weymouth area hosted the sailing events for the London 2012 Olympic and Paralympic Games.

The race is located adjacent to the Jurassic Coast World Heritage Site and takes place amid sandy beaches, coastal scenery, and the Dorset countryside.

Course

1.2-mile ocean swim
56-mile rolling bike
13.1-mile flat run along the esplanade

The swim is in the sea off the Jurassic Coast. The bike route is described as rolling through Dorset countryside. The run is a flat course along Weymouth's seafront esplanade. Reported average water temperature is 63°F / 17°C. Typical air temperatures listed are a high of 44°F / 13°C and a low of 35°F / 8°C.

IRONMAN 70.3 Weymouth received recognition in the IRONMAN 70.3 Athletes' Choice Awards, including top placements for Most Recommended Race in EMEA and Best Swim in EMEA. Visit the organization's website for the most recent information.

13 mi

13.1-Mile Run

1.2-Mile Ocean Swim

56-Mile Rolling Bike Ride