Noun
(baseball) a pitch thrown with maximum velocity
Source: WordNetNo baseball pitcher would be worth a darn without a catcher who could handle the hot fastball. Casey Stengel
Later, I could take something off my slider and I could make my fastball sink, so I really had four pitches. Dennis Eckersley
At 19, I was still figuring out how to throw a fastball. Gio Gonzalez
The reason I think I'm a good pitcher is I locate my fastball and I change speeds. Period. That's what you do to pitch. That's what pitchers have to do to win games. Greg Maddux
I looked for the same pitch my whole career, a breaking ball. All of the time. I never worried about the fastball. They couldn't throw it past me, none of them. Hank Aaron
He turned his head, reacted in a microsecond, and hit the deck just before a hundred-mile-an-hour fastball zipped past his ear and clanged into the wire backstop. Had the pitch been another inch lower or a few miles an hour faster, he would have been beaned and, at that speed, possibly killed. Lis Wiehl