I had a Golden Retriever - bit heavy for a running dog that did a ten mile x-country (dirt roads) charity run with me without the slightest problem.
Had a Red Setter who could easily do 10 miles with me when I was pushing it, and that would include her taking all sorts of detours. It took absolutely nothing out of her. I've no doubt that she could easily have run a 40 min ten if you kept her focused (not easy with a Red Setter).
I've currently got a Chocolate Labrador that I found as a very young puppy dumped on a gravel road when I was out for a hill session. He's a working lab, which is a lot more athletic than the blocky show lab (he's got a waist like a greyhound) and can jump/climb a 5ft fence like nothing. He's a running machine and again would have no problem with a 40 min ten mile.
The caveat with all of this is that it would have to be in moderate heat.