2024 MLB Umpire Crew List & Roster

MLB quietly posted its 2024 umpire crew list on its website, albeit marked "CONFIDENTIAL"... though the crews are posted publicly via Official Information => Umpires = > Crews. In any case, crew chief Jerry Layne returns as baseball's most experienced umpire in the major leagues, with a new crew for recently-promoted chief Chris Guccione and new-hires Clint Vondrak and Ryan Wills slotted into the mix. Here are the 2024 crews:

2024 MLB Umpire Crews

#	Crew Chief	Umpire 2	Umpire 3	Umpire 4
A	50 Emmel, Paul	49 Fletcher, Andy	76 Muchlinski, Mike	52 Visconti, Jansen
B	2 Bellino, Dan	10 Cuzzi, Phil	11 Randazzo, Tony	66 Tosi, Alex
C	26 Miller, Bill	88 Eddings, Doug	62 Whitson, Chad	44 Moore, Malachi
D	64 Porter, Alan	28 Wolf, Jim	36 Blakney, Ryan	29 Barber, Sean
E	13 Tichenor, Todd	89 Blaser, Cory	79 Gonzalez, Manny	33 Ceja, Nestor
F	80 Johnson, Adrian	81 Wolcott, Quinn	18 De Jesus, Ramon	25 Valentine, Junior
G	72 Marquez, Alfonso	16 Barrett, Lance	90 Ripperger, Mark	40 Ortiz, Roberto
H	63 Diaz, Laz	73 Gibson, Tripp	83 Estabrook, Mike	12 Bacchus, Erich
I	51 Hudson, Marvin	21 Wendelstedt, Hunter	74 Tumpane, John	48 Mahrley, Nick
J	14 Wegner, Mark	1 Dreckman, Bruce	35 Rehak, Jeremie	15 Vondrak, Clint
K	46 Kulpa, Ron	4 Fairchild, Chad	37 Torres, Carlos	20 Wills, Ryan
L	24 Layne, Jerry	19 Carapazza, Vic	78 Hamari, Adam	32 Moscoso, Edwin
M	27 Vanover, Larry	86 Rackley, David	96 Segal, Chris	TBD*
N	98 Conroy, Chris	7 O'Nora, Brian	31 Hoberg, Pat	55 Miller, Brennan
O	58 Iassogna, Dan	54 Bucknor, CB	97 May, Ben	38 Beck, Adam
P	6 Carlson, Mark	71 Baker, Jordan	85 Scheurwater, Stu	TBD*
Q	23 Barksdale, Lance	5 Hernandez, Angel	93 Little, Will	59 Lentz, Nic
R	92 Hoye, James	8 Drake, Rob	17 Reyburn, DJ	84 Libka, John
S	68 Guccione, Chris	91 Knight, Brian	47 Morales, Gabe	67 Additon, Ryan
U	Unassigned:	87 Barry, Scott	43 Livensparger, Shane	CloseCallSports.com

Transactions:

Crew A (Emmel) added Fletcher for Fairchild, Muchlinski for Lentz, and Visconti for Rehak.

Crew B (Bellino) added Randazzo for Ripperger and Tosi for Livensparger (unassigned).

Crew C (Miller) added Eddings for Drake and Moore for Ortiz.

Crew D (Porter) added Blakney for Muchlinski. Blakney is now a #3.

Crew E (Tichenor) added Blaser for Knight, Gonzalez for Randazzo, and Ceja for Tosi.

Crew F (Johnson) added De Jesus for Gonzalez. Wolcott is now a #2. De Jesus is now a #3.

Crew G (Marquez) added Barrett for Eddings. Barrett is now a #2.

Crew H (Diaz) added Gibson for Fletcher. Gibson is now a #2.

Crew I (Hudson) added Mahrley for Blakney.

Crew J (Wegner) added Vondrak (new-hire) for Scheurwater. Rehak is now a #3.

Crew K (Kulpa) added Fairchild and Wills (new-hire) for Blaser and Visconti.

Crew L (Layne) added Moscoso for Mahrley.

Crew M (Vanover) added Segal (from Nelson) for Guccione (new crew chief). Rackley is now a #2.

Crew N Conroy added Miller, Br for Ceja.

Crew O (Iassogna) added Bucknor and May (from Nelson), for Barry (unassigned) and Morales. 

Crew P (Carlson) added Scheurwater for Gibson and TBD for Br Miller.

Crew Q (Barksdale) added Hernandez for Hickox (retired) and Lentz for Additon.

Crew R (Hoye) added Drake for Hernandez.

Crew S (Guccione) replaced 2023 Crew B (Nelson; retired) and has four different umpires.

Unassigned umpires are Barry and Livensparger. Crews M & P have TBD slots.

Supervisor Jim Reynolds oversees Crews A (Emmel), F (Johnson), N (Conroy), and P (Carlson).

Supervisor Larry Young oversees Crews B (Bellino), D (Porter), and J (Wegner).

Supervisor Mike Everitt oversees Crews C (Miller), G (Marquez), H (Diaz), and Q (Barksdale).

Supervisor Charlie Reliford oversees Crews E (Tichenor), L (Layne), and S (Guccione).

Supervisor Jeff Kellogg oversees Crews I (Hudson), O (Iassogna), and R (Hoye).

Video as follows:

Alternate Link: 2024 MLB Umpire Crews are not so CONFIDENTIAL anymore