Velocity is important, but you don't need a supernatural fastball to do damage as a high school pitcher
MLB pitchers are leaving the fastball behind - Sports Illustrated
99 Ways to Improve Pitching Velocity - You Go Pro Baseball
The myth of the rising fastball and searching for the ideal baseball bat
How spin led the Twins out of the pitching wilderness - Part 3 - Twinkie Town
Spin Rate Part II: Spin Axis & Useful Spin - Driveline Baseball
How to Grip & Throw Each Pitch
Angels send Griffin Canning to Triple-A to work on fastball command – Orange County Register
Pete Fairbanks and the cutting, rising fastball - DRaysBay
How Fast Is a Fastball?