'you want to include field events, there is only one answer to this question, no argument:'
Don't they teach you to answer the question in college? Now that is a rhetorical question.
First he has set a world record, second the op said running - you might as well add that he never set the land speed record in a car
I don't think Tyson should be in the mix either as he is clearly second best to Bolt. Surely you could pick a runner who was at least the best in his era
Now this is tricky though, was going to go for Harrison Dillard. Olympic gold in both 100m and 100m hurdles without setting record in either. But he tied the world record in 120/220y hurdle!
I'm off to have a think