Castle Howard Triathlon, Swim, Run

Castle Howard, York


Castle Triathlon Series has provided covid-19 safety information for this event.

Organiser's Description

Set on the southern border of the North York Moors, this stunning location and course has resulted in the event becoming increasingly popular, and again includes The Gauntlet half Iron distance. A physically challenging event with an open water swim in the beautiful Great Lake, a technical cycle through the Yorkshire and the Howardian Hills, followed by a run through the stunning Estate grounds with a sprint finish right in front of the main doors of the house. A picture postcard backdrop and a course with something for every level of triathlete.

Individual triathlon distance events from children's races to the middle distance Gauntlet, triathlon relay events from children's races to the Gauntlet, aquabike, aquathlon and duathlon events at sprint and standard distances, also swims and runs.

Live bands, food stalls, a retail area and camping at the castle make the weekend a festival of sporting achievements.


  • Individual Triathlon events Prices from
    £60 BOOK
  • Individual Tri Star events Prices from
    £37 BOOK
  • Duathlon Prices from
    £51 BOOK
  • Aquabike Prices from
    £55 BOOK
  • Aquathlon Prices from
    £38 BOOK
  • Swim Series Prices from
    £30 BOOK
  • Run Series Prices from
    £26 BOOK

In light of the recent government announcement (Monday 22 Feb), we are very encouraged to see a return to organised outdoor sport from March 29. All our 2021 events will fall in line with National Governing Body guidance and we are therefore very confident that we will be able to deliver a safe and successful season of mass participation events. We look forward to kicking off our season with the Cholmondeley Castle Triathlon and Multi-Sport Festival on June 19th/20th.

Castle Howard, York YO60 7DA

All competitors in all races will receive a medal on completion of their race.

Prize money for Olympic and Gauntlet

Each weekend will feature live music and entertainment, retail outlets and concessions, and a variety of locally-sourced foods and refreshments for competitors and spectators alike.

Competitors’ supporters will pay a fee for entry to this event.


Individual/Relay Middle Distance The Gauntlet - 1.9km/90km/21km

Individual/Relay Olympic - 1500m/40km/10km

Individual/Relay Sprint Plus - 800m/46km/8km

Individual/Relay Sprint - 750m/23km/5km

Individual/Relay Super Sprint - 400m/23km/4km

Individual/Relay Starter Tri - 200m/13km/2.5km

Individual/Relay Junior 9 - 10 yrs - 200m/4km/1.3km

Individual/Relay Junior 11 - 12 yrs - 300m/4km/1.6km

Individual/Relay Junior: 13 - 14 yrs 400m/6km/2.4km

Individual/Relay Junior: 15 - 16 yrs 500m/8km/2.4km)

Mixed Team Relay - 250m/5km/1.5km


Sprint - 5km/20km/2.5km

Standard - 10km/45km/4.5km


Sprint - 750m/20km

Standard - 1500m/45km


Sprint - 750m/5km

Standard - 1500m/10km

Run Series:

42.2 km, 21.1 km, 10 km

Swim Series:

5 km, 2.5 km, 1 mile

We organised a hugely successful socially distanced event at Hever Castle in September 2020 for over 4000 participants and their supporters. This has given us, the Industry but most importantly our participants, the confidence to return to racing in 202!.

We want to reassure all participants that we’ll continue to work closely with Government, governing bodies, venues and suppliers to ensure that our 2021 events are run in accordance with current health and safety guidance.

Our increased health and safety measures cover 5 key principles of education: touch point reduction, density reduction, athlete self-reliance and enhanced hygiene.

Should we be required to put on a socially distanced event, participants will still get the full race experience but with individual rolling starts, 1 competitor every 10 seconds (sometimes greater), restricted time on site either side of your race and possible limit on spectators per athlete only.

We will prepare venue specific documents to send to all participants ahead of the event. These will include details on how to prepare pre-event, arrival timings and movements, swim, cycle, run, festival village and exit.

Castle Howard is located just 15 miles North East of York, just off the A64 in the direction of Malton and Scarborough.

From the North: From the A1 take the A61 to Thirsk then the A170 to Helmsley. Before Helmsley turn right onto the B1257 and follow the brown signs.

From the South: Take the A1M to Junction 45 and follow the A64 east to York. Continue past York and eventually you will pick up the brown signs for Castle Howard.

The estate will be marked where spectators can watch and position themselves around the course.

Loading Map


First-hand event reviews from people who’ve been there, done that and got the breathable T-shirt, really help everyone choose their next event.

Write a review and you’ll be entered into a monthly draw to win a pair of running shoes of your choice from Pro:Direct Running.

Who's In

Create your free profile to see what events your friends are doing

sign up / log in