Complex sentence: As a senior playing for the DeLand Bulldogs high school football team, he rushed for 1,149 yards on 227 carries for a 5.1-yard average which was preceded by 900 rushing yards as a sophomore and over 1,200 yards as a junior.
Split into simpler sentences: As a senior playing for the DeLand Bulldogs high school football team, he rushed for 1,149 yards on 227 carries for a 5.1-yard average. Previously, he recorded 900 rushing yards as a sophomore and over 1,200 yards as a junior.