Helen Coffey's first Backyard Ultra was never going to be a gentle introduction. The event began at 9pm in Kent and sent runners into the night on a course with 102m of elevation, a reminder that this is a race built to test patience as much as pace.
For anyone unfamiliar with the format, a Backyard Ultra is a last person standing endurance race with no official finish line. Competitors run 4.167 miles every 60 minutes, then do it again, and again, until only one runner is left. That simple structure is part of the appeal: there is no set winning time, only the question of how long each runner can keep going.
How the format grew
The format traces back to 2011, when Gary “Lazarus Lake” Cantrell first held the original Big’s Backyard Ultra on his property in Tennessee. Cantrell is also one of the founders of the Barkley Marathons, and the Backyard Ultra shares that same sense of extreme endurance challenge, even if the rules are easier to explain.
Over the past five years, the format has exploded in popularity. Matt Blackburn, who did his first Backyard Ultra event in 2020, said there were probably about six races in the UK at the time. Now, he said, you could probably do one every weekend. He also suggested that sudden growth is a big part of the reason the format has become so popular.
What it was like on the night
For Coffey, the appeal quickly met reality. A night start, a course with elevation and the pressure of keeping the effort going hour after hour made it clear why this race has a reputation for breaking down runners' plans. That is part of the draw, though: the Backyard Ultra is not just about speed, but about staying composed when the night gets longer and the body starts asking questions.
The UK boom also says something broader about endurance running. A format that once felt niche enough to count on one hand has become common enough that, in some stretches, there may now be a race almost every weekend. For runners looking for a brutal but straightforward test, that is a sign the Backyard Ultra has moved well beyond novelty.
