If you watch Chubb’s college game tape..
First of all ..pre injury he looked immortal. Like a demi god. An incredible once a generation running back
Post injury..he looked really good, not quite as sharp. He did test incredibly well at the combine as an athlete, overshadowed by Barkley’s all time great performance. since coming to nfl Chubb seems to have recovered back to his pre injury days.
Anyways on tape..chubbs vision was insane. He was big, he could break tackles. No other runner could take a 0 yard run and turn it into a 3-4 yard gain. He had explosive fast twitch ability and could get into second gear. He was clocked at over 22 MPH in 2017, fastest recorded time that year in college. Chubb ran against stacked boxes his entire career in college and excelled. 3.9 yards after contact according to PFF