It’s time for you to Own the Unknown and complete your Longest Run for your chance to win some amazing prizes.

More than 50,000 participants from across the globe are getting ready to complete their Longest Run before tackling 26.2 miles at the mass or virtual TCS London Marathon on Sunday 23 April.

The Longest Run in most training plans is around 20 miles – and whether you’re a seasoned pro or first time participant, no Longest Run is ever the same. Lucozade Sport is inviting you to Own the Unknown, push your boundaries and take on the challenge. All you need to do is complete 20 miles of activity over the next two weeks across an unlimited number of recorded efforts and upload the screenshots to our registration page!

Even if you’re not taking part in the marathon this year, you can still show your support (and give yourself an opportunity to win a place in next year’s event!) by walking, jogging or running your way to 20 miles. Once you’ve gone the distance, you’ll be entered into a prize draw for a chance to win a 2024 TCS London Marathon place.

It’s time for you to Own the Unknown. IT’S ON!