WARMUP

3x Rounds
10x Air Squats
10x Down Dog Push-ups
20x High Knees

Get ~5:00 of Mobility

Examples: https://warriormindset.us/mobility-recovery/ 

WORKOUT

800m Run
Rest 4:00
400m Run
Rest 3:00
200m Run
Rest 2:00
400m Run
Rest 4:00
800m Run

*Run what you can run, if you are a good runner, go all out. If you are a new runner, just jog. If you cannot jog the entire distance walk as fast as you can. – but keep moving for the run portion.