Spring-like-shoes legal for marathons?

On a level course in Vienna, accompanied by a revolution of 41 world-class pacemakers, Kenyan Eliud Kipchoge extended the breaking points of human undertaking by turning into the first individual to run a long-distance race in less than two hours.

After a day in Chicago, Radcliffe watched her 16-year old women's marathon world record tumble to another Kenyan. Brigid Kosgei crossed the finish line in 2 hours 14 minutes 4 seconds t....