I sent the following newsletter about fartlek training to high school coaches the first week of April. Ensure you get on my email list here so you don't miss the next email.

What is a fartlek run? Well, Fartlek training is an unstructured training method where you alternate between periods of fast running and slower jogging. The term "fartlek" is Swedish for "speed play."

In the context of cross country running, the version of fartlek workout I...