1. 50 Marathons in 50 Days
The American runner Dean Karnazes famously ran 50 marathons in 50 US states which, even over the course of a lifetime, is highly impressive. But Karnazes’ feat was made more impressive due to completing all 50 marathons in 50 consecutive days. That’s 26 miles of a running a day for almost 2 months. The achievement, which has now been dubbed the 50/50/50, made Karnazes a household name in his country, and after completing the 50th marathon in New York City, the talented runner decided to jog back home…. to San Fransisco.