You have to be moving forward if you want to stop the clock.
Lots asking about going out of bounds backward. If you are untouched by the defender and slide out of bounds, the clock stops. Not like NCAA
Interesting.
I'll have to watch for that in the future.
You often see back shoulder throws near the sideline where the defender pushes the WR slightly backwards and OOB and the ref winds his arm to keep the clock running. I didn't realize it was the contact with the defender that made the difference.