This isn’t a mere running race — it’s an extreme event that’s expected to last 24 hoursNewsDuration 2:37This weekend’s 1st Paradise Backyard Ultra event will see 150 runners complete one lap every hour until there’s only one runner left standing. The lap is just under seven kilometres — not a long distance for these athletes, but the race is as much a mental test as a physical one. The CBC’s Jeremy Eaton talks to some participants ahead of the endurance challenge.