Complex sentence: However, the graduation rates established by the NCAA showed poor results, for example they reported that among students who entered college between 1993 and 1996 only 51 percent of football players graduated within 6 years and 41 percent of basketball players.
Split into simpler sentences: However, the graduation rates established by the NCAA showed poor results. For example, they reported that among students who entered college between 1993 and 1996 only 51% of football players graduated within 6 years and 41% of basketball players.