The very tall (the 7 foot types) are rarely especially good athletes; height is such a big advantage in basketball that very tall players can get away with being somewhat less athletic. There are plenty of existing sports where being tall is an advantage, but not such an overwhelming one, such that six and a half footers are not uncommon and in some cases under six footers are rare. Boxing has been mentioned, and in American football both height and reach are advantages for many positions (tall quarterbacks get a better view of the field, and leverage means they can usually put a little more power into their throws, receivers with more height or reach can reach for and fight for balls, blockers and tacklers are harder to get around when they have better reach). It's also an advantage for baseball pitchers (again, the leverage is good for throwing harder), but is not, contrary to Anaytical Engine, much of an advantage for batters (perhaps because the larger strike zone is too much of a compensating disadvantage, or perhaps because the advantages of a good eye and good control of the bat are so much more important than anything else). Other than goalkeepers, height doesn't seem like a huge advantage in soccer (perhaps for the baseball batting reason that, even if it helps a little, other things help much, much more, so the much deeper talent pool of average height people contains many more of those with the needed exceptional skills).