Over 250 boats are expected to take part. Image: Great River Race

Everyone knows the London Marathon. Everyone knows the Boat Race. But did you know that every September, there's a third major event that's a mash-up of the two? The Great River Race is a thrilling 21.6-mile long dash along the Thames. Here's the skinny on 2026's event.

What is the Great River Race?

In 2023, over 30 charities were supported by participants. Image: Great River Race

Starting out in 1988 as a relatively small event, the Great River Race has grown to feature over 250 rowing boat crews of all shapes and sizes. You'll see skiffs to regal-looking barges to Viking-style long boats. Participants row the 21.6-mile course along the Thames from Millwall to Richmond, all vying to win a coveted Great Race trophy. It makes for a seriously fun day out for spectators, and *whisper it* there's a far better chance the weather will be sunny, than during the more famous Boat Race.