58-year-old runs speedy barefoot marathon in India

Barefoot Bobby is taking the marathon world by storm

WATCH: South African triple jumper runs barefoot 100m in 10.40 seconds

Lleyton Davids ran faster than any Canadian has yet this year–without spikes

American ultrarunner completes barefoot trek of California’s John Muir Trail

It took Kenneth Posner 22 days to conquer the 210-mile route