The 2020 roster for the Diamondbacks included Zac Gallen at pitcher, Carson Kelly at catcher, Christian Walker at first baseman, Ketel Marte at second baseman and Eduardo Escobar at third baseman.

	NO.	NAME	POS	HEIGHT	WEIGHT	DOB	AGE	BIRTHPLACE
1	13	Nick Ahmed N. Ahmed	SS	6'2"	195	3/15/1990	30	East Longmeadow, MA
2	59	Jeremy Beasley J. Beasley	P	6'3"	215	11/20/1995	24	Lyons, GA
3	47	Travis Bergen T. Bergen	P	6'1"	205	10/8/1993	26	McDonough, GA
4	61	Silvino Bracho S. Bracho	P	5'10"	190	7/17/1992	27	Maracaibo, Venezuela
5	25	Archie Bradley A. Bradley	P	6'4"	225	8/10/1992	27	Muskogee, OK
6	40	Madison Bumgarner M. Bumgarner	P	6'4"	242	8/1/1989	30	Hickory, NC
7	56	Kole Calhoun K. Calhoun	RF	5'10"	215	10/14/1987	32	Buckeye, AZ
8	47	Andrew Chafin A. Chafin	P	6'2"	225	6/17/1990	30	Kettering, OH
9	45	Taylor Clarke T. Clarke	P	6'4"	200	5/13/1993	27	Ashburn, VA
10	58	Stefan Crichton S. Crichton	P	6'3"	200	2/29/1992	28	Houston, TX
11	32	Kevin Cron K. Cron	1B	6'5"	250	2/17/1993	27	Placentia, CA
12	34	Jon Duplantier J. Duplantier	P	6'4"	225	7/11/1994	25	Newark, DE
13	5	Eduardo Escobar E. Escobar	3B	5'10"	185	1/5/1989	31	La Pica, Venezuela
14	23	Zac Gallen Z. Gallen	P	6'2"	191	8/3/1995	24	Gibbsboro, NJ
15	37	Kevin Ginkel K. Ginkel	P	6'4"	210	3/24/1994	26	San Diego, CA
16	33	Matt Grace M. Grace	P	6'4"	215	12/14/1988	31	Palos Verdes Estates, CA
17	41	Junior Guerra J. Guerra	P	6'0"	205	1/16/1985	35	San Felix, Venezuela
18		Taylor Guilbeau T. Guilbeau	P	6'4"	180	5/12/1993	27	Baton Rouge, LA
19	9	Jon Jay J. Jay	LF	5'11"	195	3/15/1985	35	Miami, FL
20	18	Carson Kelly C. Kelly	C	6'2"	220	7/14/1994	25	Chicago, IL
21	29	Merrill Kelly M. Kelly	P	6'2"	190	10/14/1988	31	Houston, TX
22	22	Jake Lamb J. Lamb	3B	6'3"	215	10/9/1990	29	Seattle, WA
23	54	Artie Lewicki A. Lewicki	P	6'3"	195	4/8/1992	28	Wyckoff, NJ
24	1	Domingo Leyba D. Leyba	2B	5'11"	160	9/11/1995	24	Santo Domingo, Dominican Republic
25	16	Tim Locastro T. Locastro	LF	6'1"	200	7/14/1992	27	Auburn, NY