What is Zone 2 — Trail & Ultra Training Tips and Advice

After 19 years of running marathons and ultras, I thought I knew my zone 2 ranges. I decided to get a lactate test in a lab, figuring it would mostly confirm what I already knew. I was way off.

Will WeidmanMarch 21, 2025Zone 2, Zone 2 Training, Z2 Training, Aerobic Threshold, Zone 2 training for runners, Z2 training for runners, What is Zone 2, What is Z2Comment