400m repeats to build strength and speed endurance

By gradually diminishing your recovery time between intervals, you can build up the resilience you’ll need to tackle a 10K or half-marathon

Try this speedwork sandwich workout to prepare for the half-marathon

Use this workout to simulate the end of a half-marathon and practice pushing through late-race fatigue

Half-marathon workout: the fitness elevator

This challenging fartlek-style workout will get you ready to run 21.1