(JTA) - It's safe to say that few people watch more baseball than Rob Friedman.

During the MLB season - which features 30 teams playing 162 games each from April through October - Friedman spends countless hours every day watching as much of the sport as he can from the comfort of a four-screen media center he set up in his home outside Atlanta.

His particular area of expertise is pitching - a complex, crucial and, he believes, underappreciated aspect of the game. His dissection of individual pitches, posted on social media, has made him an authority on the craft.

For nine years, posting as...