Eastern Region Junior Race Series

This event is organised by ActiveTrainingWorld in partnership with The Triathlon Trust

This is a mass-start event. All finishing positions will be calculated based on gun time for your wave and not chip time. This is a children's triathlon, however it is still a non-draft legal race. To be entered for the Eastern Region Junior Race Series standings, athletes must be a resident within the Eastern Region or be a current member of an Eastern Region Triathlon Club and be a British Triathlon Home Nation Junior member.


There are five age classifications based on year of birth. Each age classification will race over different distances. RACE START TIMES WILL BE ANNOUNCED CLOSER TO TO THE EVENT DATE BUT EXPECT THEM TO BE IN THE AFTERNOON OF AUGUST 18TH. Please see the below table. 

RaceSwim DistanceBike DistanceRun DistanceAge RangeAs of:
TriStart: 50m 800m 600m 8 Years Olds 31st December 2019
TriStar 1: 150m 2Km 1.2Km 9-10 Years Olds 31st December 2019
TriStar 2: 200m 4Km 1.8Km 11-12 Years Olds 31st December 2019
TriStar 3: 300m 6Km 2.4Km 13-14 Years Olds 31st December 2019
Youth: 300m 6Km 2.4Km 15-16 Years Olds 31st December 2019

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 11am at race HQ.

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

Non-BTF members are required to pay £3 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


Herts Childrens Tri


Specified in above table


Swim - Open water
Bike - Grass
Run - Grass




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






Age groups are as specified in the above table


ActiveTrainingWorld & The Triathlon Trust




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 Male 1st, 2nd and 3rd in age group.

Trophies for Female 1st, 2nd and 3rd in age group.

icon Course Information

The swim is held in Stanborough Lake. A duathlon race option will be available for all Tristart duathletes if they decide they don't want to participate in the open water swim. 

The bike course is entirely on grass and we strongly recommend against the use of slick road bike tyres in case it is wet and slippy on the day. The Triathlon Trust will have Cuda Performance bikes and helmets to hire for the event at a cost of £20. Please email contact@triathlontrust.org if you would like to hire one, stating your child's approximate height.

The run course is entirely on grass and is progressively more undulating for each age group race.

Complete Course Map

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:

The details of the athlete I am entering into this race will be passed onto the event organisers for the administration of the race.

The athlete's name and date of birth and the email address of the person completing the booking form will be passed onto the chip timing company. Personal details will be deleted 1 week after the event.

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


1) I take full responsibility for ensuring the athlete I am entering into this race is medically fit to compete & understand that they complete entirely at the risk of their parent/guardian.

2) I understand that all athletes who participate in this event, do so at the risk of their parent/guardian and that no person(s) or organisation(s) will be held responsible for any accident, injury or loss to the competitor, prior to, during or after the event.

3) I fully accept the safeguarding policy for children's triathlon events.

4) I fully accept the photography policy for children's triathlon events.

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

6) 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