}

20-Minute Spartan Workout: Endurance

20-Minute Spartan Workout: Endurance
Presented by Spartan Training®

It's hard to build endurance in 20 minutes.

When time is of the essence you can only up your speed to increase difficulty.

Today, after a 5-minute warm-up, see how far you can run in 12 minutes. Cool-down for 3.