London Aquathlon October 2026

Join us for the London Aquathlon 2026 on Saturday 31 October 2026!

Take on a unique swim–run at the iconic London Aquatics Centre in Queen Elizabeth Olympic Park. This event suits first-timers, PB chasers, and anyone who prefers the comfort and precision of an indoor pool before a scenic park run. Entries are open to participants aged 15 and over.

Your race begins with a 400 m pool swim in the world-class London Aquatics Centre. You will then head out for a measured 5 km run around South Park with views of the London Stadium and the Olympic legacy all around you. Expect smooth organisation, supportive marshals, and a lively finish to celebrate your effort.

Race Distance & Start Times

09:00 Wave 1

Laps

Swim - 4 lengths / 8 laps

Included in the entry

Unique themed medal

Free race photos

Chip-timed results

Post-race goodies

Each kilometre is accurately marked with distance flags, and our friendly marshals will guide and cheer you all the way to the finish. We cannot wait to welcome you to London Aquathlon.

With RunThrough, you can expect a friendly team of marshals to help guide you around the course and cheer you on to the finish, a lively and well-serviced event village with plenty of food and drink options, including free goodies from our partners at the finish line after your hard effort.

We have been extensively researching what runners consider important, and sustainability is fast becoming the top issue. Click here to see what RunThrough is doing for sustainability.

You can now grab your London Aquathlon event t-shirt for more than 30% off when you buy it as part of your entry on checkout! With the event logo printed on the chest, it’s the perfect keepsake to celebrate your race and wear your achievement with pride!

We can do this with our partner RT Kit as part of a strategic decision to raise awareness about the quality of the product, whilst reducing the overall cost of events for those who would prefer not to have a t-shirt included.

Come and enjoy the day with us. Once you enter, you will receive a confirmation email. More information will be sent closer to the event. We can’t wait to see you on the start line.