The Swedish word for ‘speed play’, fartlek is one of the most common training sessions that I use with my athletes. The history of fartlek training dates back more than 80 years, when coaches and ...

Jeff Galloway almost certainly holds the record for a run-walk marathon — he ran a 2:16:35 at Houston in 1980 while taking a brief walk break each mile. It’s also his personal record, and it came ...