It looks like a slider to me. Did the batter hold off on the swing? If he did, props.
Wait so if someone masters throwing whatever kind of pitches, wouldn't the batter never hit unless he/she had godly reaction time? Not a baseball guy here
Edit: Damn Learned a truck ton! Never really liked baseball cuz I thought it was boring and single layered. How naive lol Thanks for the info guys! Definitely going to be catching a few games on the telly soon!