Marathon Swims Virtual Challenge

The Marathon Swims Virtual Challenge is your chance to take on an iconic marathon swimming distance in your own time.

Participants choose from the Marathon 10k or the Ultra Marathon 25k. Swim as often as you'd like in a swimming venue of your choice to achieve your distance challenge. Registration has now closed.


Complete your challenge (pool or open water) over 30 days.  See our Virtual Challenge FAQ's for more info. The 2020 Marathon Swims Virtual Challenge finished on 11 May 2021 (due to restrictions and pool closures). The challenge will be back in 2021.

Outdoor Swimmer - Mini Mag 

Our fantastic partners Outdoor Swimmer magazine have created our very own Mini-Mag to provide extra inspiration, motivation and training advice for all our Marathon Swims Virtual Challenge participants. Download it here.

FREE Prize Draw:

Our partners have kindly provided some amazing prizes for our FREE prize draw. Every entry to the Marathon Swims Virtual Challenge who submits their result before midnight 31 December will be entered into the free prize draw.

However, in response to the Tier 4 lockdown, we're aware that many participants have been unable to complete their challenge. Therefore we have made some of the prizes available to those who submit their times, post the end of Tier 4 restrictions. The prizes to be announced at a later date are indicated below and a new deadline results submission date will be announced in due course.


KitBrix: our friends at KitBrix have kindly offered to supply some additional prizes, including some of their amazing KitBrix bags.  The City Brix bag will be awarded later in 2021.

SwimQuest: our friends have offered one place on one of their SwimQuest River Arun 6.5km swims worth £85 in 2021. There are up to 6 dates to choose from in 2021. This trip will be awarded later in 2021.

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Swim for Tri: our friends at Swim For Tri have very kindly offered some of their Session in a Bottles for the free prize draw. These are fantastic training aids. 5 sets of these will be awarded later in 2021, with 5 sets awarded in early January.

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Soul Cap: our friends at Soul Cap have very kindly offered one of their micro-fibre towels for the free prize draw. 

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Outdoor Swimmer Magazine: our partners at the fantastic Outdoor Swimmer Magazine have very kindly offered a year's subscription to their awesome magazine (worth £75) for the free prize draw. 

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The small print:

All free prize draw prizes are offered to Marathon Swims Virtual Challenge Participants who successfully upload their results before midnight 31 Dec 2020 only. Draw to be made on or around 1 Jan 2021. No alternative prizes or cash equivalents offered, prizes non-transferrable. Winners will be sent the gifts to their address listed on their registration. For some prizes, the winner's postal address will need to be shared with the maker of the prize to enable the prize to be sent directly to the winner. All participants agree to share their postal address with our trusted partners should they win. Participants in the Marathon Swims Virtual Challenge can opt out of entering the free prize draw by requesting removal on email - Marathon Swims reserves the right to amend the rules at any time. Winners will be announced on social media.

Due to the Lockdown and Tier restrictions in 2020/21 some of the prizes have been held back to award to participants who complete their challenge before 11 May 2021.