Trinity Triathlon 2019

Before you Enter

Welcome to the Trinity Triathlon Registration process.

To avoid disappointment we suggest that you enter as soon as possible. 

Please be aware that we are not able to refund duplicate entries so please liaise within your family to ensure the same competitor is not entered more than once.

Please note: Entrant age calculations are based on the age of the entrant as at 31st December 2019.

Individual Entries

Junior (17 to 19)
300m swim - 12km cycle - 2900m run


Youth (15 to 16)
300m swim - 10km cycle - 2500m run


Tristar 3 (13 to 14)
250m swim - 8km cycle - 2100m run


Tristar 2 (11 to 12)
200m swim - 6km cycle - 1700m run


Tristar 1 (9 to 10)
150m swim - 4km cycle - 900m run


Tristart (5 to 8)
50m swim - 1.1km cycle - 500m run. Under 8s are accepted if competent at given distances. Contact the organiser if unsure



The Trinity Triathlon was nationally recognised by Triathlon England as ‘Children’s Event of the Year’ in 2016. The event has also been awarded ‘London Region’s Children’s Event of the Year’ for the third consecutive year in 2017.

It is a non-profit making Triathlon, now in it's ninth year it was set up by the school to create our very own Olympic legacy event.

For further information about the event please see our website, 

Event Information


Need help with your registration?
Contact our Support Team.

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