Backyard Ultra
RunHard$2 daysSpring, AutumnBe the first
What it takes
The backyard ultra is the fastest-growing format in endurance running (+25% annual growth). The concept is simple: run a 4.167-mile loop every hour, on the hour, until everyone else stops. Last person standing wins. There's no set distance — races have lasted over 100 hours. The format rewards consistency, mental toughness, and pacing discipline over raw speed, making it surprisingly accessible for experienced runners over 50.
Injury Prevention for This Adventure
These are the most common injuries for run athletes over 50. A few minutes of targeted prehab each week can keep you on track.