therunningbug Tue, Jul 5 2016 02:27 PM Likes9 13 comments Facebook1 Twitter0 Run faster: the complete guide to fartlek training As a runner you probably often hear the word Fartlek banded around but what does it actually mean? To help you, our expert coaches at Runningwithus explain what it is and how to use it to increase your speed and overall pace. To continue, log in or sign up. It's FREE and only takes a minute! Log in to your account OR Sign up with Facebook JOIN NOW for FREE!