Baseball's Too Slow. Here's How You Fix It. - The New York Times
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Understanding Baseball's Unique Words and Phrases - HowTheyPlay
Don't blink: The science of a 100-mph fastball | Mariners Preview 2017
Baseball's 100 Miles Per Hour Club - Men's Journal
The Giants aren't hitting the ball as hard as the other teams - McCovey Chronicles
Throwing Too Hard Is Killing Baseball's Best Pitchers - WSJ