7,000 combined rushing and receiving yards in a career
Darrin Nelson, Stanford — 1978-1981Stanford Athletics
At Stanford, Nelson was on the team that first popularized the West Coast offense, carving out a new role for running backs. He became the first player to rush for 1,000 yards and catch 50 passes in a season. Then he did it two more times.
All that led to Nelson finishing his career with 4,442 yards rushing, and 2,550 yards receiving for a grand total of 7,001 yards. It helped to have John Elway throwing the ball.
That record should be safe for a long time. The runner-up in combined rushing and receiving yards is Steve Bartolo of Colorado State, who had 5,892 total yards (4,813 yards rushing and 1,079 receiving) from 1983-86.