Some people just weren't made to run long distances, but end up doing just fine and make it to the HOF. Case in point:I ran it with my wife back in the 80’s. My training was running 3 miles around 4 times a week to maintain my 300 PFT. I was able to hang with her for about 5 Miles but ended up finishing about an hour behind her. Old lady’s were passing me by the end. One of the dumbest things I have ever done.