- An ultramarathon race is anything longer than 26.219 miles
- Number of ultramarathons has doubled in the past decade
- When a marathon is too easy or too uptight, just keeping running and running and ...
LOS ANGELES (CNN)The difference between marathons and ultramarathons is the difference between a dragonfly and a dragon. The races both involve endurance running, but beyond that, they are practically different sports. Adding an "ultra-" prefix in this case means going miles beyond its root word.