2023 MLB Umpire Crew Roster & Call-Up Umpires

Major League Baseball has assigned the following umpires to its full-time staff for the 2023 season, divided into 19 crews and comprised of four umpires led by a Crew Chief. Jerry Layne is now the senior-most crew chief on staff, while seven new crew chiefs will lead permanent crews for the first time in 2023. MLB also hired 10 new full-time umpires for the 2023 season to fill vacancies left by 10 retirees. Below the Umpire Crews is the roster of the 2023 call-up officials, who are minor league (AAA-level) umpires authorized to fill in for vacationing or injured full-time MLB umpires during the regular season.

#	Crew Chief	Umpire 2	Umpire 3	Umpire 4
A	24 Layne, Jerry	19 Carapazza, Vic	78 Hamari, Adam	48 Mahrley, Nick
B	45 Nelson, Jeff	54 Bucknor, CB	96 Segal, Chris	97 May, Ben
C	26 Miller, Bill	8 Drake, Rob	62 Whitson, Chad	40 Ortiz, Roberto
D	27 Vanover, Larry	68 Guccione, Chris	86 Rackley, David	32 Moscoso, Edwin
E	50 Emmel, Paul	4 Fairchild, Chad	59 Lentz, Nic	35 Rehak, Jeremy
F	14 Wegner, Mark	1 Dreckman, Bruce	85 Scherwater, Stu	44 Moore, Malachi
G	72 Marquez, Alfonso	88 Eddings, Doug	16 Barrett, Lance	18 DeJesus, Ramon
H	58 Iassogna, Dan	87 Barry, Scott	47 Morales, Gabe	38 Beck, Adam
I	6 Carlson, Mark	71 Baker, Jordan	73 Gibson, Tripp	55 Miller, Brennan
J	63 Diaz, Laz	49 Fletcher, Andy	83 Estabrook, Mike	12 Bacchus, Erich
K	46 Kulpa, Ron	89 Blaser, Cory	37 Torres, Carlos	52 Visconti, Jansen
L	51 Hudson, Marvin	21 Wendelstedt, Hunter	74 Tumpane, John	36 Blakney, Ryan
M	23 Barksdale, Lance	15 Hickox, Ed*	93 Little, Will	67 Additon, Ryan
N	92 Hoye, James	5 Hernandez, Angel	17 Reyburn, DJ	84 Libka, John
O	80 Johnson, Adrian	79 Gonzalez, Manny	81 Wolcott, Quinn	25 Valentine, Junior
P	2 Bellino, Dan	10 Cuzzi, Phil	90 Ripperger, Mark	43 Livensparger, Shane
Q	13 Tichenor, Todd	91 Knight, Brian	11 Randazzo, Tony	66 Tosi, Alex
R	64 Porter, Alan	28 Wolf, Jim	76 Muchlinski Mike	29 Barber, Sean
S	98 Conroy, Chris	7 O'Nora, Brian	31 Hoberg, Pat	33 Ceja, Nestor
	Injured List:	15 Hickox, Ed		CloseCallSports.com

Triple-A Call-Up Umpires:

Arrieta, David (Sleeve #100)

Bacon, John (70)

Ballou, Brock (119)

Clemons, Paul (104)

MacKay, Alex (105)

Merzel, Dan (107)

Navas, Jose (110)

Ramos, Charlie (111)

Riggs, Jeremy (112)

Rosenberg, Randy (113)

Tomlinson, Nate (114)

Vondrak, Clint (116)

Williams, Lew (117)

Wills, Ryan (118)

Video as follows:

Alternate Link: 2023 Opening Day umpire rosters - full-timers, crews, and call-ups (CCS)