5K Base Phase: The Easy Run with Strides
A 3.1-mile (5km) zone 2 easy run finished with a handful of short, fast strides. What strides are, why they belong in the base phase, how to run them, and where the session fits in your week.
Runthatfits TeamOct 8, 2026
5K Base Phase: The Zone 2 Easy Run
The 4.3-mile (7km) zone 2 easy run is the foundation of 5K training. What it's for, how to run it at a very easy 3 or 4 out of 10 effort, why walking is allowed, and how to fit it around the rest of your week.
Runthatfits TeamOct 8, 2026