Rob Friedman on X: Starting Pitcher eyeblack battle.

Rob Friedman (@PitchingNinja) / X

Pitching Ninja growing game one 'filthy' pitch at a time - The

Rob Friedman (@PitchingNinja) / X

How Rob Friedman Became the Pitching Ninja - The New York Times

Hartford Rivalry Plays Out On Big Stage At Dunkin' Donuts Park

Rob Friedman (@pitchingninja) • Instagram photos and videos

Freshman pitcher throws the fastest recorded pitch in college

Rob Friedman on X: Needed a pic for a thumbnail, so asked AI to

Rob Friedman (@pitchingninja) • Instagram photos and videos

Freshman pitcher throws the fastest recorded pitch in college

Rob Friedman (@PitchingNinja) / X

Rob Friedman on X: Legendary Pitchers Coaching: Walter Johnson

Pitching Ninja' Rob Friedman Launches FlatGround To Help

Yu Darvish Major League Baseball, News, Scores, Highlights