What's the toughest pitch to hit?

[UNCTarheels]

changeup- it fakes you out, you have to stay back on it. It just freezes you.

Riser-it looks good and it just rises at the last second. By the time you swing, it's too late."

[Rams15]

The toughest pitch to hit is the one that you are least expecting in a location that taps into a hitter's weakness. It becomes a cat and mouse game between hitter and pitcher. Everyone knows that one of the key ingredients to success, as a pitcher, is to change speeds. Therefore, it can be any of the forementioned pitches that can create difficulties for a hitter.

[Jammer24]

I haven't seen too many girls throw it but a good drop ball baffles most hitters, especially hitters that sit back in the box.