Peterson's 11,675 yards places him 17th all time, 6,680 yards behind Smith's 18,355. If All Day plays five more seasons he would need to average 1,336 yards to break Smith's record. Peterson led the NFL with 1,485 yards in 2015. At 30 years old, history is against Peterson holding that streak of longevity. Most backs decline at 30, but the Vikings' bulldozer has proven to be more than a mere mortal before -- leading the NFL in rushing after tearing an ACL.