Estimated swim times
Want to update your estimated swim time?
In order to make the swim as enjoyable as possible, we use your estimated swim time to allocate swim start times. This means you will be swimming with others of a similar speed, hopefully avoiding being swum over or having to stop to let faster swimmers past.
Please check estimated swim times and amend by 30 April 2025
Swim distances based on each category:
Adult Open Distance – age 17+
300m swim – 12 lengths in the 25m pool
Adult Open Super Sprint Distance – age 20+
300m swim – 12 lengths in the 25m pool
Juniors – 17-19 years – If contending in the London Series
300m swim – 12 lengths in the 25m pool
Youths – 15-16 years
300m swim – 12 lengths in the 25m pool
TriStar 3 – 13-14 years
300m swim – 12 lengths in the 25m training pool
TriStar 2 – 11-12 years
150m swim – 6 lengths in the 25m training pool
TriStar 1 – 9-10 years
150m swim – 6 lengths in the 25m training pool
TriStart – 8 years
50m swim – 2 lengths in the 25m training pool
Estimated swim time
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