Probably the Se-users (ENXJ) have a little more natural drive for sports. Si is a more observant force in interacting with the world, where Se is actively looking to interact.
With these types, those are the only natural inclinations, while I think for non-Se-doms (or Se-aux) those are very strong, for other types cultural factors and upbringing are more likely to be the reason for someone to spend a lot of energy on sports (and excel because of that).
So I think these might be a toss-up honestly. If you'd put a gun to my head I'd say ENXJ, but I have nothing but gut feeling to back me up there.
With these types, those are the only natural inclinations, while I think for non-Se-doms (or Se-aux) those are very strong, for other types cultural factors and upbringing are more likely to be the reason for someone to spend a lot of energy on sports (and excel because of that).
So I think these might be a toss-up honestly. If you'd put a gun to my head I'd say ENXJ, but I have nothing but gut feeling to back me up there.