Just to reword what 4Her4Life and Kaitlyn said: don't even dream about tiring out a JRT solely by running. Sure, they need it to keep their energy levels at bay, but mental exercises are what make them totally pooped for hours. Add trick training, ability, obedience, nosework, discdog, barnwork or smething similar to your daily schedule.
Also be aware that puppies shouldn't do strenuous exercises (e.g. running with humans), it's not good for their health and physical development.
This should give you an idea about the energy levels of the breed:
https://www.youtube.com/watch?v=dKka0rbJ9gk