
Overview
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.
Jewel of the Jurassic Coast As host venue of the London 2012 Olympic and Paralympic sailing events, the Weymouth area is an international sport event haven. Situated off the World Heritage Site Jurassic Coast, this race is a first-timer favourite, featuring sandy beaches, spectacular coastline and the stunning Dorset countryside.
Race categories
113K
IRONMAN 70.3
- Schedule
Friday 18th September 2026
11 AM - 5 PM · IRONMAN 70.3 Athlete Registration · Weymouth Pavilion 11 AM - 5 PM · IRONKIDS Registration · Weymouth Pavilion 11 AM - 6 PM · Expo & IRONMAN Merchandise Store · Weymouth PavilionSaturday 19th September 2026
8 AM - 3 PM · IRONMAN 70.3 Athlete Registration · Weymouth Pavilion 8:30 AM - 5 PM · Transition Open for Bike & Bag Check In · Lodmoor Car Park 8:30 AM - 5 PM · Expo & IRONMAN Merchandise Store · Weymouth Pavilion 9 AM - 11 AM · IRONKIDS · Weymouth Pavilion 4 PM - 4:45 PM · IRONPRAYER · St Mary's ChurchSunday 20th September 2026 – Race day
5 AM - 7 AM · IRONMAN 70.3 Transition Open · Lodmoor Car Park 7:15 AM · Age Group Self Seeded Rolling Start · Lodmoor Country Park Beach Front 10 AM - 5 PM · IRONMAN Merchandise Store · Weymouth Pavilion 2 PM - 6 PM · Transition Open for Bag & Bike Check Out · Lodmoor Car Park 4:30 PM - 5 PM · Timing & Results Objections · Weymouth Pavilion 6 PM - 8 PM · Awards Ceremony & Slot Allocation · Weymouth Pavilion- Route
Swim
Sea
Bike
Rolling
Run
Flat
Typical race-day conditions
Air 7–19 °C · Water 17 °CSwim course
The 1.2 mile (1.9 km) swim course is composed of one clockwise lap in an L shape layout. Swim straight out away from Weymouth's beach and turn right. You will swim for 750 meters before two right hand turns back towards swim exit. One final left turn and you will exit the water and make your way toBike course
The one-loop 56 mile (90 km) bike course consists of one anti-clockwise loop through the rolling Dorset Countryside up North to King's Stag and back to Weymouth via the towns of Godmanstone and Dorchester.Run course
The updated route is a 2.5 lap course starting from
Update history
3 Oct 2026
Time changed: 12 September at 0:00 → 12 September at 4:00
IRONMAN 70.3 Weymouth
Sun, 12 Sept 2027