QA 12: Is a Drop a Throw?
Q:
My throwing hand bumped a tree branch during my backswing, knocking the disc to the ground, and the disc rolled forward of my lie. Was that a throw?

A:
No. The throw begins when movement of the disc in the intended direction begins. A disc dropped or knocked out before or during a backswing does not count as a throw.

Applicable Rules: 800.02 Definitions (“Throw”).