How to Enter

Online Entry

Entering Swim Serpentine

Online entry for all distances at the 2018 edition of Swim Serpentine have now sold out.

Please visit our Swimmer Info page for a full event timetable.

Half-Mile Swim

Entry into the half-mile swim at Swim Serpentine 2018 is now closed.

One-Mile Swim

Entry into the one-mile swim at Swim Serpentine 2018 is now closed.

Two-Mile Swim

Entry into the two-mile swim at Swim Serpentine 2018 is now closed.

Super Six event

Entry into the Super Six at Swim Serpentine 2018 is now closed.

The London Classics

London Marathon Events have brought together the best marathon in the world, the world’s greatest cycling festival and the inspirational open water swimming event, Swim Serpentine, to create the London Classics, one of the world’s great sporting challenges.

The unique challenge requires participants to run the Virgin Money London Marathon, cycle 100 miles in the Prudential RideLondon-Surrey 100 and swim two miles at Swim Serpentine, the open water swimming festival.

Visit our London Classics page for more information.

Swimmers with Disabilities

Swimmers with a disability are welcome to enter any of the events. If support or help on the day is needed, please contact disability@londonmarathonevents.co.uk

Wetsuit & tow-float hire

Wetsuits are optional when the water temperature is over 15 degrees. However, for safety reasons, all swimmers must either wear a wetsuit or use a tow-float for all Swim Serpentine events.

Choosing your wave

The Swim Serpentine events will comprise a number of waves (groups).

If you enter Swim Serpentine, you will be able to choose your wave, so you'll be able to swim with friends and family if you’d like to. If you do not choose a wave, you will be allocated one according to your predicted finishing time.

Change of address

If you change your address after applying, please email changeofaddress@londonmarathonevents.co.uk with your name, date of birth, telephone number, old address and your new address.

Your address details will then be changed in our system and a confirmation will be emailed to you when this has been done.

Please do not call the helpdesk with changes of address as these can only be processed by email.

Age Group Prizes

Although the focus of the event is on having fun, prizes will be awarded to first, second and third-placed swimmers in each age category. Prizes will be sent out post-event.