roadking wroteI would agree, I dont like the interference call, but I could not judge if the defensive player intentionally threw at the runner.
By NCAA rule set the interference was correct call if you have no intent to throw at runner?
Unless there is something else contradicting this, "intent" is required with a thrown ball:
12.8.5 When she interferes with a fielder attempting to field a batted ball,
interferes with a fielder attempting to throw the ball or intentionally interferes with a thrown ball.
EFFECT—The ball is dead. The batter-runner is awarded first base unless
she is the player in violation. If the official scorer judges the
batted ball would have been a hit, the batter is credited with a
base hit, but if not, it is scored as a fielder’s choice. Each base
runner not forced by the batter-runner must return to the last
base legally touched at the time of the interference.
If the interference, in the umpire’s judgment, is an obvious
attempt to prevent a double play and occurs before the base
runner is put out, the runner being played on shall also be called
out.