British Triathlon Major Event

The event is organised by Active Training World

2019 Triathlon England National Sprint Distance Triathlon Championships

2020 ETU Sprint Distance Triathlon European Championships Qualifier

This is a mass-start event. All finishing positions will be calculated based on gun time and not chip time.This is a non-draft legal race. To be eligible for Triathlon England Major event titles, entrants must be a member of their home nation association and a British citizen. You will not be eligible for the Triathlon England Championships with a day license. More details on eligibility can be found in the British Triathlon Rule Book.

This race will also be hosting the Hertfordshire Triathlon Club Championships.

This event is not just reserved for the age-group heroes of triathlon, but for those of all abilities. 

Online entries: Pay by major credit/debit cards

icon Registration

Registration packs will NOT be posted out in advance of the race.

Registration packs can be collected on race day from 5:30am at race HQ.

All competitors must comply with BTF rules - including being licensed to race.

Non-BTF members are required to pay £5 in cash on race day for a day license.

BTF Members who cannot produce a valid BTF race license are required to pay for a day license.

icon Event Profile


Hertfordshire Summer Triathlon


Swim - 750m
Bike - 20Km
Run - 5Km


Swim - Open water
Bike - Undulating roads
Run - Off-road




Water will be provided once on each lap of the run and at the finish.




Bike - No
Run - Yes


15 On/Before 31 Dec 2019
(Under 17s with Parental Consent)





The higher of a £1 / 6% service fee will be applied at the checkout.



This race is supported by Better and The British Triathlon Federation. 

Active Training World are proud to support the Triathlon Trust, the official charity of British Triathlon. 

If you would also like to support this race then contact us at:

icon Prizes

Finishers medal for all!

Trophies for overall Male 1st, 2nd & 3rd place.

Trophies for overall Female 1st, 2nd & 3rd place.

icon Course Information

The swim will take place in Stanborough Lake with a deep-water start. The route is a 750m clock-wise loop, marked with large ATW branded swim buoys. 

The bike route is one anti-clockwise loop. There is one mandatory foot-down point as you exit Stanborough Lakes. At this point, you must bring your bike to a complete stop before continuing. Faliure to do so will result in disqualification from the race.

The 2.5km run course is on hard, compacted ground with short cut grass, so despite being an off-road run, is incredibly fun to race on and can make for some fast times! There is one short climb towards the end of each lap. 

Swim Course Map

Bike Course Map

Run Course Map

icon Training Plans

ActiveTrainingWorld have free training plans to help you train for this event:


Other Race Information

Race Numbers
You will be provided with two race numbers in your registration pack. Your race number must be clearly visible on your front for the run and on your back for the bike. If you are not using a race belt, please pin one number on your back and one on your front. If you are using a race belt, only one number is required, provided you adjust the position of your race number during each leg of the race.

Parking and Transport
Parking is available at Stanborough Lakes.

Changing and Bag Storage
We will not be providing a changing area, therefore please come changed and ready to race. A marshalled baggage area within transition will be provided so you can keep your warm-up clothes safe during the race.

Portaloo toilets will be provided for the event.


By entering this event you agree to the below terms and conditions:

Your details will be passed onto the event organisers for the administration of the race.

Your name, date of birth and email details will be onto the chip timing company. Personal details will be deleted 1 week after the event.

Where specified on the booking form any medical information will be passed onto the medical team present at the event. 


1) I declare that I am medically fit to compete & understand that I do so entirely at my own risk.

2) I understand that I enter the race at my own risk and that no person(s) or organisation(s) will be held responsible for any accident, injury or loss to myself, prior to, during or after the event.

3) I understand the organisers reserve the right to alter the arrangements and conditions, should circumstances require.

4) By entering this event, the athlete indicates acceptance of BTF rules.


LOCATION: Stanborough Lakes, Welwyn Garden City, Hertfordshire, AL8 6DQ

Location: Stanborough Lakes, Welwyn Garden City, Hertfordshire, AL8 6DQ