Major League Baseball assigned 14 umpires to the 2023 American and National League Championship Series round of the MLB postseason featuring Astros-Rangers (ALCS) and Phillies-Diamondbacks (NLCS). Crew Chiefs are Dan Iassogna and James Hoye.
Crew Chiefs are indicated in bold text and by the -cc suffix with regular season crew chiefs denoted by an asterisk (*). Those working their first League Championship Series are marked with ^1st CS^. The following listings feature Game 1 configurations such that the plate umpire from Game 1 will work right field in Game 2, the Reserve umpire falls in rotation between 1B and HP (e.g., 1B->Reserve->HP->RF) and all other umpires will move clockwise (e.g., 3B becomes 2B). Games 5, 6, and 7 plates are if necessary.
AL League Championship Series (Houston Astros vs Texas Rangers) Umpires:
HP: Stu Scheurwater ^1st LCS^ [Game 1 Plate] [2 WC, 2 DS, 1st Lg Champ Series]
1B: James Hoye* -cc [Game 3 Plate] [5 WC, 4 DS, 4th LCS, 2 WS]
2B: Doug Eddings [Game 4 Plate] [4 WC, 6 DS, 3rd LCS, 1 WS]
3B: Marvin Hudson* [Game 5 Plate] [2 WC, 8 DS, 3rd LCS, 2 WS]
LF: Jordan Baker [Game 6 Plate] [4 WC, 2 DS, 2nd LCS, 1 WS]
RF: Dan Bellino* [Game 7 Plate] [2 WC, 7 DS, 2nd LCS, 1 WS]
Reserve: Mark Ripperger ^1st LCS^ [Game 2 Plate] [2 WC, 1 DS, 1st Lg Champ Series]
NL League Championship Series (Philadelphia Phillies vs Arizona Diamondbacks) Umpires:
HP: Andy Fletcher ^1st LCS^ [Game 1 Plate] [4 WC, 2 DS, 1st Lg Champ Series]
1B: Dan Iassogna* -cc [Game 3 Plate] [4 WC, 7 DS, 7th LCS, 3 WS]
2B: Mike Muchlinski [Game 4 Plate] [3 WC, 3 DS, 3rd LCS, 1 WS]
3B: Lance Barksdale* [Game 5 Plate] [4 WC, 6 DS, 4th LCS, 2 WS]
LF: Tripp Gibson [Game 6 Plate] [4 WC, 3 DS, 2nd LCS, 1 WS]
RF: Adam Hamari [Game 7 Plate] [4 WC, 1 DS, 2nd LCS]
Reserve: Carlos Torres ^1st LCS^ [Game 2 Plate] [3 WC, 2 DS, 1st Lg Champ Series]
League Championship Series Replay Review: Mike Estabrook, Jeremie Rehak, Chris Segal.
Video as follows: