by Duncan Larkin
He is using a combination of technology and old-fashioned training.
by Duncan Larkin, Published Mar. 7, 2011, Updated Sep. 12, 2012 at 12:55 PM UTC
He's now going to give the half marathon a shot.
Start your FREE subscription to Competitor Digital today!
Get our monthly digital magazine, weekly running content & exclusive offers delivered to your inbox.
© 2014 Competitor Group Inc. All Rights Reserved