IRONMAN Bolton
Bolton's 70.3 starts with 1,900 m in Pennington Flash, a shallow lake in a country park west of the town, then sends you out for 90 km on Lancashire lanes through a string of villages before 21.1 km around the town centre and Queen's Park.
This is northern English road racing, so plan for narrow lanes, patchy surfaces, and climbs that are short and steep rather than long and steady. Descending needs care in the wet, and in early June wet is entirely plausible.
The compensation is the crowd. Bolton has supported triathlon for years and the town-centre laps are noisy in a way that a rural course cannot match.
Two practicalities: the lake is fresh water and cool, so treat the wetsuit as a given, and Manchester airport is close enough that international athletes can land, drive, and be racking a bike the same day.
Who it's for
Built for experienced triathlon athletes.
Good fit if you…
- are experienced in triathlon and want a hard race
- want a well-known, high-status race
Maybe not if you…
- are brand-new to triathlon: start with something shorter
What should you know about IRONMAN Bolton?
- Date
- Sunday, 6 June 2027
- Format
- Half / 70.3
- Water temp
- 21°C · 70°F
Need to know
When is IRONMAN Bolton 2027?
IRONMAN Bolton takes place on Sunday, 6 June 2027. Dates can move year to year, so confirm the exact day on the official race page before you book travel.
How do you register for IRONMAN Bolton?
Where does IRONMAN Bolton take place?
Bolton, United Kingdom
When has IRONMAN Bolton taken place before?
FAQs
What do athletes ask about IRONMAN Bolton?
Where is IRONMAN Bolton held?
IRONMAN Bolton is held in Bolton, the United Kingdom. The race page has the venue location and a map, and links straight through to the official site for the precise start area.
What distances can you race at IRONMAN Bolton?
IRONMAN Bolton offers Half / 70.3. The Half / 70.3 is a 1.9 km swim, 90 km bike and 21.1 km run. Pick your distance and enter on the official site. Each format usually has its own start wave and cut-offs.
What's the water temperature at IRONMAN Bolton?
The swim at IRONMAN Bolton is around 21°C (70°F), based on the official average for the venue. Water temperature drives wetsuit rules, so check the organiser's current wetsuit policy before race day.
How do I enter IRONMAN Bolton?
You enter IRONMAN Bolton through the official organiser. Registration is handled on their site, and FindMyNextRace links you straight there. Places for popular editions can sell out early, so register as soon as entry opens.
Is IRONMAN Bolton part of a race series?
Yes, IRONMAN Bolton is part of the IRONMAN series. Series events often share a qualification, points, or championship pathway, so if you're chasing the series, check how this race fits its calendar.
How should I train for IRONMAN Bolton?
Training for IRONMAN Bolton depends on your target distance and current fitness. Most athletes follow a structured block of 12–20 weeks for a Half / 70.3 effort. Build a plan tailored to your race date and level with AI Training Plan (https://aitrainingplan.app).
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