This Upcoming Fitness Race London Athletes Have Been Waiting For Just Announced Its September Dates
Flatout debuts in London on 25–27 September at Old Billingsgate, featuring seven race categories and launching Sidekicks, a new adult-junior team format in a three-day fitness event.
Summary: Flatout is heading to Old Billingsgate Market from 25–27 September for its London debut, bringing a three-day functional fitness race experience with seven categories and the worldwide first launch of Sidekicks, a team format built for adults and juniors racing together.
There's a particular feeling that happens on race morning. You've trained, you've shown up, and now the warm-up zone is filling up around you with people who made the same decision you did. That feeling is hard to manufacture. Flatout has spent years building events around it.
This September, London gets its turn.
What To Expect From the Upcoming Fitness Race London is Hosting This September
Flatout London runs 25–27 September at Old Billingsgate Market, EC3R 6DX. Three days, seven race categories, and a venue sitting right beside Tower Bridge that's going to make the finish line feel like something worth working for.
The format combines endurance running with functional workout zones across the full floor of Old Billingsgate. Each zone tests something different: strength, movement, endurance, and the kind of grit that's hard to train for on your own. You move through them with the crowd around you, the stations staffed by people who genuinely want to see you clear it.
"We create events that challenge you physically, but the environment always feels competitive, supportive, and open," said Adam Smith, Founder of Flatout. "You don't need to be elite to be here. What we've built in London is the kind of race weekend that stays with you, and Old Billingsgate gives it a setting that matches that ambition."
Among the fitness events London UK has seen in recent years, Flatout's approach stands out for one specific reason. It's built around reducing the gap between someone doing their first race and someone going for a top finish. Same course, same atmosphere, same crowd noise. The category system handles the rest.
Seven Categories Across the Weekend
Event: Flatout London Venue: Old Billingsgate Market, London, EC3R 6DX Dates: 25–27 September
Categories:
- Solo— entry point for most participants, all fitness levels welcome
- Elite — competitive category for athletes focused on performance
- NextGen — dedicated junior race format
- Doubles — pairs racing the course together
- Relay — squad-based team format
- Elite — top-end competitive tier
- Sidekicks — brand new adult and junior team category, making its world debut here
The weekend includes athlete warm-up zones, professional race-day production, spectator access throughout the venue, and a finish line with a view of one of London's most recognisable skylines.
About Flatout
Flatout is a UK fitness race brand that delivers professionally produced hybrid fitness events combining running with functional workout zones. Designed for people who already train and want a meaningful challenge, Flatout creates race-day experiences that bring together participants, local gyms, coaches, and spectators in an environment that feels competitive, supportive, and welcoming.
Join the Upcoming Fitness Race in London
Tickets: https://weareflatout.co.uk/flatout-london
Media enquiries and press accreditation: https://weareflatout.co.uk/