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Cholmondeley Castle Triathlon

Event details
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Another instalment of the Castle Tri Series, the Cholmondeley Castle Triathlon is spectacular. With a variety of adult and junior distances on offer, everyone can get involved. Come for the epic routes, festival-like atmosphere, and all-around family fun.
C-19 Plan
Castle Triathlon Series has confirmed that this event will be going ahead as planned on Friday 18th Jun 2021 in accordance with the COVID-19 safety measures. Learn more

Review summary

1 Review
  • Course
  • Organisation
  • Atmosphere


"I never heard so much bad language and aggressive abuse. If I had a penny for..."
See all reviews

How to enter the Cholmondeley Castle Triathlon

  1. Super Sprint

    Triathlon: Swim 0.4km, Bike 22km, Run 4km
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  2. Starter Tri

    Triathlon: Swim 0.2km, Bike 14km, Run 2.5km
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  3. Adult Mixed Relay

    Triathlon: Swim 0.25km, Bike 5km, Run 1.5km
    Book Now
  4. Half Iron - The Gauntlet

    Triathlon: Swim 1.9km, Bike 96km, Run 21km
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  5. Olympic

    Triathlon: Swim 1.5km, Bike 44km, Run 10km
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  6. Sprint Plus

    Triathlon: Swim 0.8km, Bike 44km, Run 8km
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  7. Duathlon Sprint

    Duathlon: Run 5km, Bike 22km, Run 2.5km
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  8. Aquabike Sprint

    Aquabike: Swim 0.75km, Bike 22km
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  9. Aquathlon Sprint

    Aquathlon: Swim 0.75km, Run 5km
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  10. Duathlon Standard

    Duathlon: Run 10km, Bike 44km, Run 5km
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  11. Aquabike Standard

    Aquabike: Swim 1.5km, Bike 44km
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  12. Aquathlon Standard

    Aquathlon: Swim 1.5km, Run 10km
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  13. Junior Triathlon (11-12 years old)

    Triathlon: Swim 0.3km, Bike 4.2km, Run 1.6km
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  14. Junior Triathlon (13-14 years old)

    Triathlon: Swim 0.4km, Bike 8.4km, Run 2.2km
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  15. Junior Triathlon (15-16 years old)

    Triathlon: Swim 0.5km, Bike 8.4km, Run 2.2km
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  16. Junior Triathlon (9-10 years old)

    Triathlon: Swim 0.4km, Bike 4.2km, Run 1.3km
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  17. Sprint Tri

    Triathlon: Swim 0.75km, Bike 22km, Run 5km
    Book Now
  18. 1 Mile Swim

    Swim 1mi
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  19. 2.5k Swim

    Swim 2.5km
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  20. 5k Swim

    Swim 5km
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  21. 10k Run

    Run 10km
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  22. Half Marathon

    Run 13.1mi
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  23. Marathon

    Run 26.2mi
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Cholmondeley Castle Triathlon routes

Every race at the 200-year-old Cholmondeley Castle start by launching into an open-water swim in Deer Park Mere Lake.

The bike route takes athletes around Bickerton Hill, the southern most tip of the Peckforton Hills. The stunning run courses passes through the estate grounds, which date back to the 12th Century.

Athletes will finish their Cholmondeley race experience by sprinting down the main lawn to the finish line with Cholmondeley Castle as a fitting backdrop.

Event Details

What’s Included
  • Official race photography
  • Finisher's medal
  • Prizes for winners
  • Live music and entertainment
  • Food and drink at the event site
Raceday Logistics


Please see the event website for more information.

The previous years start timings for the various Sprint events took place between 07:30 and 14:30. The Starter Tri, Children and Swim only events started between 15:00 and 17:00.

If Covid restrictions dictate, they shall follow a similar format at this Venue. If social distancing is not required, all adults events will take place in the morning and Children and Mixed Team Relay events after 14:00.

Entrants will be notified of their start time via email 2 weeks prior to the event. It is advised that entrants arrive at least 1 – 1.5 hours before their given wave time. Relays go off in the final wave of their distance.

Kit List

Bikes are available to hire with British Bike Hire at

Kit List

  • Transition box/bag
  • Wetsuit
  • Goggles
  • Towel
  • Cycling shoes & socks (If wearing)
  • Tri suit or shorts and t-shirt
  • Bike and helmet
  • Trainers (some routes require trail shoes)
  • Nutrition
  • Water Bottle
  • Race Belt

Junior Equipment

  • Wetsuit (all Castle Triathlon Series events are in open lakes so temperatures can get pretty cold)
  • Swimming goggles
  • Swim hat (all competitors get a free hat on the day of the events
  • Bike (mountain bikes are ideal) and helmet
  • Trainers
  • Elastic or lock laces – to tie up your trainers quickly
  • Tri-suit or shorts and t-shirt are fine

There is a fee for spectators at the event but there are plenty of places to watch your friends and family so come on down!

Spectators will pay a nominal fee for car parking on the estate and entry in to the grounds: adults – £5, children aged between 6 – 15 years old – £3.

All competitors are free and children taking part in the 8-15yrs races can bring in 1 adult per competing child for free.

Frequently Asked Questions

Can I hire a bike rather than trek mine to the Cholmondeley Castle Triathlon?
Absolutely, if you hire a bike with British Bike Hire, the bike will be at the event site waiting for you. Visit for more information.
Is it an open water swim at the Cholmondeley Castle Triathlon?
Yes, as with all Castle Triathlon swims, the swim will take part in Deer Park Mere Lake.
When will I be sent my start time for the Cholmondeley Castle Triathlon?
You will be emailed your start time approximately 2 weeks ahead of the event.

Meet the organiser

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Formed in 2009, the Castle Triathlon Series has swiftly established itself as the UK’s largest triathlon series. From Lough Cutra to Chantilly and Castles Howard, Cholmondeley and Hever, we’re immensely proud of the iconic backdrops to each Castle Triathlon Series race and the friendly festival atmosphere produced at every event.



Cholmondeley Castle Triathlon reviews

1 out of 5 stars

  • Course
  • Organisation
  • Atmosphere
  • C


    Did the Super Sprint in 2019

    I never heard so much bad language and aggressive abuse. If I had a penny for every F and C word coming from cyclists to pedestrians and drivers passing my home on Sunday whilst they were competing in the triathlon then I would have earned a fortune. Absolutely disgusting behaviour and an insult to the sport and the charity they are trying to support.
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Tickets £23–£203

© Let's Do This 2021