Complex sentence: He went on to become an All-Ivy League quarterback at Dartmouth College for his senior season of 1972, and in his three-year varsity career the Big Green went 24--2--1 with three straight Ivy League championships.
Split into simpler sentences: He went on to become an All-Ivy League quarterback at Dartmouth College during his senior season in 1972. In his three-year varsity career the Big Green went 24--2--1 with three straight Ivy League championships.