What is the different between an endurance runner and a long D runner?

Answer 1

Often when people refer to endurance runners they are reffering to people who run in ultra distance events; long distance runners being people who run in long distance events. Long distance typicaly stops around 26.2 (marathon) and ultra distance describing anything over.

Answer 2

Frankly I use those two terms interchangably. However, Chris has a good distinction even though I refer to ultra runners as ultra runners, not endurance runners.

I've even heard cross-country runners referred to as long distance runners, so like everything else, SEMANTICS....