GEORGETOWN 400s

We recommend GEORGETOWN 400s for runners of all ages, abilities, & ambitions regardless of the distance or surface for which they are training.

In this video, Coach Eric Reyes demonstrates how to perform this effective stamina & economy boosting interval session named for a workout that former Georgetown University Coach Frank Gagliano had his athletes do to increase their stamina.

For more details about this workout, please read "Critical Velocity Intervals."