Umpire Mark Carlson makes a strike out call during the game

Grading MLB umpires: Meet the humans behind the Twitter bots that track balls and strikes - The Athletic

An in Depth Look at the 2015 Strike Zone - AZ Snake Pit

Mariners-Nationals game ends with absolutely brutal call

1,844 Umpire Strike Out Stock Photos, High-Res Pictures, and Images - Getty Images

Umpire Mark Carlson forgets how to count to 4 and Whit Merrifield strikes out on a 4-2 count (pitch-by-pitch) : r/baseball

Opening Day sees 14 clock violations

Mark Carlson's Read Step - Subtle Adjustments on an Awkward Throw

9/29) Umpire Mark Carlson started the game by ringing up Marcus Semie, umpire baseball

Umpire Scorecards on X: #OpeningDay Umpire: Mark Carlson Final: Guardians 0, Mariners 3 #ForTheLand // #SeaUsRise #CLEvsSEA // #SEAvsCLE More stats for this game 👇 / X

Jays Lose in Extras - Bluebird Banter

How MLB Umpires Learned to Explain Replays to Crowds - The New York Times

Umpire Scorecards on X: Umpire: Mark Carlson Final: Dodgers 1, Padres 2 #AlwaysLA // #TimeToShine #LADvsSD // #SDvsLAD #Postseason More stats for this game 👇 / X

La Russa: Ejection was not strategic move - The San Diego Union-Tribune

MLB: Catchers Would Be Impacted By Automated Strike Zone

Close Call Sports & Umpire Ejection Fantasy League: MLB Ejection 125 - Mark Carlson (2; Miguel Rojas)