BEST WORKOUT FOR ENDURANCE (Fartlek)

This in my Opinion is the best training for endurance runners. It incorporates 10K pace and tempo pace in the form of a Fartlek.

Video where Alex ran into people - https://www.youtube.com/watch?v=8EKx46Ugytk

If you're trying to get a stronger aerobic system this Fartlek workout could be adapted to your training as I've seen a lot of benefit from this specific type of training for endurance.

Shout to the runner ;)
Also an actual shoutout to @kofuzi for hitting 100k subscribers!