The 2025 roster for the Mariners includes Randy Arozarena, Eduard Bazardo, Ryan Bliss, Matt Brash and Juan Burgos.

	NO.	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	56	Randy Arozarena R. Arozarena	LF	5'10"	185	2/28/1995	30	Havana, Cuba
2	83	Eduard Bazardo E. Bazardo	P	6'0"	190	9/1/1995	29	Maracay, Venezuela
3	1	Ryan Bliss R. Bliss	2B	5'7"	165	12/13/1999	25	Burbank, CA
4	47	Matt Brash M. Brash	P	6'1"	173	5/12/1998	27	Kingston, Canada
5	67	Juan Burgos J. Burgos	P	6'0"	185	12/22/1999	25	Santiago, Dominican Republic
6	8	Dominic Canzone D. Canzone	RF	6'0"	190	8/16/1997	27	Cleveland, OH
7	62	Blas Castano B. Castano	P	5'10"	162	9/8/1998	26	Espaillat, Dominican Republic
8	67	José Castillo J. Castillo	P	6'6"	252	1/10/1996	29	Valencia, Venezuela
9	58	Luis Castillo L. Castillo	P	6'2"	200	12/12/1992	32	Bani, Dominican Republic
10	43	Luis F. Castillo L. F. Castillo	P	6'3"	212	3/10/1995	30	Fantino, Dominican Republic
11	3	J.P. Crawford	SS	6'0"	202	1/11/1995	30	Long Beach, CA
12	74	Jhonathan Díaz J. Díaz	P	6'0"	170	9/13/1996	28	Valencia, Venezuela
13	73	Logan Evans L. Evans	P	6'4"	215	6/5/2001	24	Ann Arbor, MI
14	43	Caleb Ferguson C. Ferguson	P	6'3"	225	7/2/1996	28	Columbus, OH
15	5	Harry Ford H. Ford	C	5'10"	200	2/21/2003	22	Atlanta, GA
16	43	Brandyn Garcia B. Garcia	P	6'4"	235	5/27/2000	25	Newport, RI
17	18	Mitch Garver M. Garver	C	6'1"	220	1/15/1991	34	Albuquerque, NM
18	36	Logan Gilbert L. Gilbert	P	6'6"	215	5/5/1997	28	Winter Park, FL
19		Domingo González D. González	P	6'0"	185	9/27/1999	25	San Francisco de Macoris, Dominican Republic
20	49	Jesse Hahn J. Hahn	P	6'5"	205	7/30/1989	35	Norwich, CT
21	26	Emerson Hancock E. Hancock	P	6'4"	213	5/31/1999	26	Cairo, GA
22	77	Luke Jackson L. Jackson	P	6'2"	210	8/24/1991	33	Fort Lauderdale, FL
23	68	George Kirby G. Kirby	P	6'4"	215	2/4/1998	27	Rye, NY
24	37	Jackson Kowar J. Kowar	P	6'5"	200	10/4/1996	28	Weddington, NC
25	78	Sauryn Lao S. Lao	P	6'2"	182	8/14/1999	25	Barahona, Dominican Republic