Great workout with @authormarkstein. Up in the morning with the Tennessee sun ☀️ doing what Marines do! 3x400m 200m break (jog) 400m rest X3 sets That last two rounds of 400m got my heart rate up but we killed it! #marathontraining #trainlikeamarine #running #qualitysession #pacework #runhard #runmore #marines #marineveteran (at Antioch, Tennessee) https://www.instagram.com/p/CC8WE05np-O/?igshid=5cyt8jouad8v













