"That's impossible!" I hear you all shout. Well, it's not and it's actually pretty easy. The runner who most recently achieved 'the impossible' was not a 2:06 Kenyan who'd been running ten miles a week for six months. It was a 37-year-old Australian who placed 7th in the Adelaide Marathon
last Sunday. Harley Vegan (who promotes the 'vegan high carb' diet) ran well under 3 hours with a time of 2:50:47. He was on 2:48 pace until 38k so lack of running training didn't cost him much time. His run training for 2014 amounted to 19.6k on average per week (actually 12 miles as he says in the video below). The video is a reply to a person who claimed a sub-3 marathon on ten miles a week couldn't be done in a comment on Harley's marathon race report video
"I use cycling to build my cardio" says Harley. "I can't even do
speedwork because I haven't got the [running] base!" Cycling is Harley's preferred sport and he's a very good cyclist. He cycles A LOT! He doesn't own a car or even have a driver's licence. On his Youtube Channel there's a video of Harley riding up the Corkscrew Hill
in Adelaide and keeping pace with the Movistar Team professional riders. He has a high VO2Max and has built up impressive endurance from cycling. "My challenge with the marathon always comes down to leg fatigue — I do runs so the legs can withstand the impact and use heavy cushioned shoes [in the race]."
I must say that I'm excited by this video from Harley (and that's coming from a rare user of the 'f' word!). I'm adding cycling to my rather modest 50 kilometres or so of weekly running (I do like running and 16-19k a week just wouldn't do it for me). I predict that the cycling will enable me to maintain (or improve) my stamina over and above simple running. As Harley says, "Ego crushes potential. Always have an open mind [about different ways to train]."