Mechanically there's an advantage to shorter limbs for particular sports, that's just how physics works.
If a basketball player could be made super-human they might trounce ordinary ping-pong players, but a super-human ping-pong player would destroy them.
Plus there's more to these sports than any one aspect. It's never just strength or height or stamina, it's a complex of factors. Finding that optimal even given all the options might be difficult. There's intrinsic trade-offs.
For example, there's two kinds of muscle tissue, that better suited to fine motor skills and that suited to brute strength. Most animals are heavily stacked in the latter category, that's why a chimpanzee can tear you in half, but they lack the sorts of fine control that permits us to do things like type with agility and write precisely.
If a basketball player could be made super-human they might trounce ordinary ping-pong players, but a super-human ping-pong player would destroy them.
Plus there's more to these sports than any one aspect. It's never just strength or height or stamina, it's a complex of factors. Finding that optimal even given all the options might be difficult. There's intrinsic trade-offs.
For example, there's two kinds of muscle tissue, that better suited to fine motor skills and that suited to brute strength. Most animals are heavily stacked in the latter category, that's why a chimpanzee can tear you in half, but they lack the sorts of fine control that permits us to do things like type with agility and write precisely.