Complex sentence: His 3:50.84 mile is still 7th all-time among Americans, ahead of greats like Jim Ryun, and his 2:16.1 in the 1000 meters is 2nd all-time for Americans.
Split into simpler sentences: His 3:50.84 mile is still 7th all-time among Americans, ahead of runners such as Jim Ryun. His 2:16.1 in the 1000 meters is 2nd all-time for Americans.