MLB Umpires Missed 34,294 Pitch Calls in 2018. Time for Robo-umps?, BU Today
Special Zoom Chat With MLB Umpires Laz Diaz and Mark Carlson - Who Have Both Served Our Country On & Off The Field - UMPS CARE Charities
MLB doubles camera angles for video reviews of umpires
MLB rule changes spark technology additions for ballparks - Stadium Tech Report
As They See 'Em: A Fan's Travels in the Land of Umpires: Weber, Bruce: 9780743294133: : Books
MLB, umpires union come to agreement on pay amid the coronavirus shutdown, reports say
MLB umpires will have a new view this season — on Zoom
Umpire concerns important for MLB amid coronavirus pandemic - Sports Illustrated
MLB Umpires Worst Calls (September 14, 2023)
MLB umpires will have a new view for replays this season – on Zoom
Rise of the Robo-Umps
Red) Storm of uncertainty: Johnnies baseball reflects on lost season, eyes future
How Zoom will help MLB umpires make replay calls in 2023 season
Dodgers-Padres NLDS umpires: Mark Carlson is crew chief - True Blue LA
12U National Open Fan Guide