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On your way to Ironman glory, you'll swim in Pennington Flash, climb some tough hills on the bike and finish the run in Bolton town centre. Don't forget to make the most of the shopping, restaurants and pubs over the course of the weekend.
C-19 Plan
Ironman has confirmed that this event will be going ahead as planned on Saturday 3rd Jul 2021 in accordance with the COVID-19 safety measures. Learn more

Review summary

4.3
5 Reviews
  • Course
  • Organisation
  • Atmosphere

T

Tony M
"Great time the course was hard but it’s an IM but what I would say is that..."

C

Cheryl R
"Well organised event except bike collection was required on the Sunday evening..."

D

David S
"My first time competing at Ironman UK, the build up for the event was a little..."
See all reviews

How to enter the Ironman UK

  1. Ironman

    Triathlon: Swim 2.4mi, Bike 112mi, Run 26.2mi
    £410
    Sold out
  2. IRONKids - 500m (nursery year 1&2, reception, year 1)

    Run 0.5km
  3. IRONKids - 1km (year 2-5)

    Run 1km
  4. IRONKids -1.5km (year 6 - 8 )

    Run 1.5km
  5. IRONKids - 1.5km (year 9-10)

    Run 1.5km

Ironman UK routes

Swim:

The two-loop 2.4 mile swim course takes place at Pennington Flash Country Park. The swim course has a triangle layout and athletes will head out before turning left twice and making their way back to the start.

Bike:

The three-loop 112 mile bike course runs in an anti-clockwise direction. Athletes will travel from Pennington Flash to Bolton for the first few miles, before taking on the three-loop bike course. The course continues through the northern countryside, past Black Dog Pub before reaching the famous Sheephouse Lane.

Run:

The four-loop 26.2 mile run course laps around Bolton town centre before ascending through the scenic Queen’s Park to Chorley New Road. Athletes will then pass numerous spectator hotspots before finishing at Victoria Square.

Event Details

What’s Included
  • Transition areas
  • Swim safety cover
  • Traffic management for road closures
  • Stewards
  • Entry to Award Ceremony
  • Entry to the official Swim Practice
  • Race day nutrition at the aid stations
  • Athlete Backpack
  • Finisher T-Shirt
  • Finisher Medal
  • Athlete Village post-race food
  • Free Massages after the race
Raceday Logistics

All athletes must register in person at the event prior to race day to collect their race packs. In order to register you will NEED:

- Your BIB number (which will be uploaded around 3 weeks prior to race day)

- Photo Identification (passport or driving licence)

You MUST attend registration yourself in order to race.

Under NO circumstance will we give your information to another person even with authorisation.

Frequently Asked Questions

What are the cut off times?
Swim: 2 hours 20 minutes + a further 10 minutes from the swim cut off to start the bike. Bike: 10 hours 30 minutes (after you cross the swim start timing mat) + a further 10 minutes from the bike cut off to start the run. Run: 17 hours (after you cross the swim start timing mat). Intermediate cut offs on the bike and run may apply in the interests of athlete safety and to enable roads to reopen according to the schedule agreed with the authorities.
Is there a minimum age requirement to enter?
Yes, athletes must be at least 18 on race day.
Do I need a race license or to be associated with a club to enter?
Athletes do need aTriathlon Race License. If you do not have one, a day licence can bought onsite for £5 WITH CASH ONLY.

Ironman UK weather forecast

18°C
Predicted highs
13°C
Predicted lows
IconLight breeze possible, up to 9mph

Meet the organiser

Are you the organizer? Claim this page

"Swim 2.4 Miles. Bike 112 miles. Run 26.2. Brag for the rest of your life." - John Collins, IRONMAN co-founder Since its inception, IRONMAN has been represented by ambitious and courageous people who aren't afraid to push their limits. Take a walk through history with us, through some of the finest and most memorable moments in IRONMAN racing.

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Ironman UK reviews (5)

4.3 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • Did the Ironman in 2019

    Great time the course was hard but it’s an IM but what I would say is that because of the state of the roads this is what made it seem harder than it was. I almost got hit by a car coming down the closed road!!!! Apart from that awesome event great people the local support and event volunteers make it a fab event.
  • Did the Ironman in 2019

    Well organised event except bike collection was required on the Sunday evening whereas in previous years they could be collected on the Monday which made things easier. Atmosphere was fab. Bike course was brutal.
  • Did the Ironman in 2019

    My first time competing at Ironman UK, the build up for the event was a little subdued, on race day everything changed a really good crowd at the swim start and loads of people cheering throughout the bike course especially at the bottom and top of the many hills, the run course spectators were fantastic and were cheering everyone as they passed.
    Now down to the nitty gritty, this is one tough course, the easiest part is the swim, which is 2 loops of Pennington Flash. The bike section is as tough or even tougher than you will get anywhere (I have competed in a few Ironman events) you need good climbing legs and then the skills to descend, you will do this numerous times, once the hills have tested your legs for 112miles you then get a run course that has one steep ascent in the park followed by a long gradual climb out of Bolton then at the turn around its a gradual descent back to the park and then a steep descent followed by a trip passed the finish line 4 times
  • Did the Ironman in 2019

    Event was ok atmosphere has been somewhat lost with no hunters hill and Babylon lane being excluded,also with lots people in the park the town centre is a lot quieter than previous years .The bike route is tough but its ironman so should be would ride the route in the rain though you will get even more casualties than you already had ,overall my 3rd Bolton ironman and even though I performed better the lack of support from previous years was definitely showing and affected my day
  • Did the Ironman in 2019

    Loved everything about the day. The course was tough but could definitely have been helped by the local councils looking after the roads. Some awful conditions.
    Atmosphere was amazing.
    Felt a bit hard done to when I spoke to an aid station lady who told me that they'd been told to water down the coke and energy drinks. You'd think ironman could afford more?
    Wouldn't put me off doing it again though 😁
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