Marathon Swims 2026

Marathon Swims returns to the London Aquatics Centre on Sunday 1 November 2026.​

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London's marathon of swimming returns to the LAC. Challenges include the Marathon 10k, Half Marathon 5k, 1k Challenge and Team 10k.​​

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Charity places:

Hundreds of swimmers are fundraising for our amazing charity partner Alzheimer's Society and Level Water. All charity entry is now CLOSED.

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General entry:

Due to demand, the general entry tickets for the Marathon 10k and Half Marathon 5k will be sold via a public ballot (between 26 March and 30 April 2026). All other General Entry tickets are now SOLD OUT.

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Ballots:

Marathon Swims is heavily oversubscribed each year, so we operate a ballot as the fairest way of distributing the places. Ballots are operated for the Marathon 10k and Half Marathon 5k. The ballot was open between 26 March and 10pm 30 April 2026.

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Entries to the ballot are free of charge. Payment details are taken at point of registration to the ballot. Only successful ballot entrants will have a payment taken, which will occur immediately upon the ballot being drawn. All successful entrants will be notified. All ballot entries have an equal chance. It does not matter when you enter the ballot, as long as you do so before the closing date. ​

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Spectators:

More information about Spectator tickets available here.

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Marathon Swims Virtual Challenge:

Entry to the FREE Virtual Challenge is available now. More info.