How to Enter

Online Entry

Entering Swim Serpentine

Online entry for Swim Serpentine is now closed.

Half-Mile Swim

Entries for the half-mile swim are now closed.

This distance is an ideal entry level open water swim. Taking in half a lap of the Serpentine, there is plenty of time to swim this distance at your leisure with a friend, race your mum or dad or just to try out an open water swimming event with an achievable but for some still challenging swim. Entries closed on Friday 4 August 2017.

Entrants must be at least 12 years old on Saturday 16 September 2017.

One-Mile Swim

Entries for the one-mile swim are now closed.

A one-mile swim is a classic distance in the world of open water swimming events. Swim Serpentine takes place on the same course as the London 2012 Marathon Swimming Olympic event, with one full lap around the Serpentine making up the one-mile swim. This is the most popular of all the swim distances for Swim Serpentine with swimmers taking anything from 20 minutes through to one hour to complete the swim.

Entry costs £39. Entrants must be at least 16 years old on Saturday 16 September 2017.

Two-Mile Swim

Entries for the two-mile swim are now closed.

For those who would like to test themselves with two full (1.6km) laps of the Serpentine. Aimed at more experienced swimmers who have already completed a mile open water swim previously. A challenging two-lap swim set in a beautiful location: what’s not to like?

Entry costs £49. Entrants must be at least 16 years old on Saturday 16 September 2017.

The London Classics

Entries into The London Classics are now closed.

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.

Super Six

Entries for the Super Six have now closed.

The Super Six event will see swimmers complete six miles as a combination of one-mile and two-mile events during the day. All the ‘Super Sixers’ will start in the same one-mile wave, then how they complete the total distance is up to them. They might choose to swim event after event, or take a break before they continue on with the swim.

Don’t underestimate this challenge – swimming for 10km straight is one thing, but the challenge for this swim is that the swimmer must to get out of the water between each one or two-mile swim and wait for the next event to start, which makes this a tough challenge for any experienced swimmer. But with a special coloured swim hat for the Super Sixers and very limited spaces available, you’ll be treated like a true ‘Super (Six)’ Hero for the day.

Entry for the Super Six event was limited to 60 swimmers. Entries for the Super Six closed at 14:00 on 21 July 2017. Entrants must be at least 18 years old on Saturday 16 September 2017.

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

Elite One-Mile Invitational Race

Entry into the Elite One-Mile Race is by invitation only. If you would like to be considered, please email Colin Hill at

Elite entries are limited to 25 male and 25 female competitors. The minimum criteria from which the swimmers will be selected is 16:10 for the men (1500m time) and 9:00 for the women (800m time) or swimmers with international open water racing experience at FINA or LEN level.   

There will also be an Elite Para One-Mile Invitational Race. Para swimmers should have international experience in the pool or triathlon and are selected by the Para elite manager.

For more information, please email

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.

As an official partner of Swim Serpentine, HUUB will provide wetsuits, swimwear and swim accessories to all swimmers looking to hire or purchase equipment for the event. Visit the HUUB Swim Serpentine page for more details.

Choosing your wave

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

If you enter Swim Serpentine, we will send you an email asking you 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 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.