The Arizona Diamondbacks have an 11-16 record on May 21 all-time.

	TEAM	DATE	REC	TM		OPP	RESULT	W%	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Diamondbacks	5/21/1998	1-0	ARI	@	FLA	W 6-4	1.000	34	6	8	1	1	1	5	4	0	9	3	0	40	14	3	1	1	0	0	.235	.308	.412	.719
2	Diamondbacks	5/21/1999	0-1	ARI	@	COL	L 7-8	.000	44	7	16	4	0	2	7	2	0	7	2	1	48	26	6	1	1	0	1	.364	.383	.591	.974
3	Diamondbacks	5/21/2000	0-1	ARI	@	NYM	L 6-7	.000	37	6	10	0	0	2	6	0	1	6	0	0	38	16	2	0	0	0	0	.270	.289	.432	.722
4	Diamondbacks	5/21/2001	1-0	ARI	vs	SFG	W 4-2	1.000	30	4	7	1	0	2	4	2	0	5	0	1	32	14	3	0	0	0	1	.233	.281	.467	.748
5	Diamondbacks	5/21/2002	1-0	ARI	vs	SFG	W 9-4	1.000	34	9	13	3	1	1	9	10	0	3	1	0	46	21	5	2	0	0	0	.382	.523	.618	1.140
6	Diamondbacks	5/21/2003	0-1	ARI	vs	SFG	L 0-6	.000	30	0	4	1	0	0	0	0	0	8	0	0	31	5	1	1	0	0	0	.133	.133	.167	.300
7	Diamondbacks	5/21/2004	0-1	ARI	@	FLA	L 5-6	.000	37	5	8	3	1	2	5	5	0	8	0	1	43	19	6	1	0	0	0	.216	.310	.514	.823
8	Diamondbacks	5/21/2005	0-1	ARI	@	DET	L 2-3	.000	38	2	7	1	1	0	2	7	0	11	0	0	46	10	2	0	1	1	1	.184	.304	.263	.568
9	Diamondbacks	5/21/2006	0-1	ARI	vs	ATL	L 1-2	.000	34	1	7	3	0	0	1	5	1	7	1	1	40	10	3	0	0	1	0	.206	.325	.294	.619
10	Diamondbacks	5/21/2007	1-0	ARI	vs	COL	W 6-5	1.000	29	6	9	1	1	3	6	4	0	3	0	0	35	21	5	1	1	1	1	.310	.382	.724	1.106
11	Diamondbacks	5/21/2008	0-1	ARI	@	FLA	L 1-3	.000	31	1	4	1	0	1	1	3	0	11	0	0	34	8	2	0	0	0	0	.129	.206	.258	.464
12	Diamondbacks	5/21/2009	1-0	ARI	@	FLA	W 4-3	1.000	34	4	7	2	0	2	4	3	0	13	2	0	37	15	4	0	0	0	0	.206	.270	.441	.711
13	Diamondbacks	5/21/2010	1-0	ARI	vs	TOR	W 8-6	1.000	36	8	14	6	0	2	8	4	0	8	0	1	40	26	8	0	0	0	1	.389	.450	.722	1.172
14	Diamondbacks	5/21/2011	1-0	ARI	vs	MIN	W 9-6	1.000	35	9	11	4	0	1	9	4	1	9	0	0	40	18	5	0	0	1	0	.314	.400	.514	.914
15	Diamondbacks	5/21/2012	0-1	ARI	vs	LAD	L 1-6	.000	31	1	6	0	1	0	1	1	0	8	0	1	33	8	1	1	0	0	0	.194	.219	.258	.477
16	Diamondbacks	5/21/2013	0-1	ARI	@	COL	L 4-5	.000	36	4	5	2	0	0	4	5	0	6	0	0	41	7	2	0	0	0	1	.139	.244	.194	.438
17	Diamondbacks	5/21/2014	0-1	ARI	@	STL	L 2-3	.000	42	2	7	1	0	1	2	4	0	7	0	1	46	11	2	0	0	0	0	.167	.239	.262	.501
18	Diamondbacks	5/21/2015	1-0	ARI	@	MIA	W 7-6	1.000	35	7	11	4	0	0	7	3	0	9	1	0	42	15	4	2	2	0	0	.314	.350	.429	.779
19	Diamondbacks	5/21/2016	0-1	ARI	@	STL	L 2-6	.000	35	2	8	1	0	1	2	1	1	7	0	0	37	12	2	0	0	0	1	.229	.270	.343	.613
20	Diamondbacks	5/21/2017	0-1	ARI	@	SDP	L 1-5	.000	32	1	5	0	0	1	1	0	0	6	0	0	32	8	1	0	0	0	0	.156	.156	.250	.406
21	Diamondbacks	5/21/2018	0-1	ARI	@	MIL	L 2-4	.000	29	2	3	0	0	1	2	4	1	6	0	0	34	6	1	0	0	0	1	.103	.235	.207	.442
22	Diamondbacks	5/21/2019	0-1	ARI	@	SDP	L 2-3	.000	31	2	5	0	0	2	2	0	0	8	0	0	32	11	2	1	0	0	0	.161	.161	.355	.516
23	Diamondbacks	5/21/2021	0-1	ARI	@	COL	L 1-7	.000	32	1	7	2	0	0	1	4	0	9	0	0	37	9	2	0	1	0	1	.219	.297	.281	.579
24	Diamondbacks	5/21/2022	1-0	ARI	@	CHC	W 7-6	1.000	39	7	11	2	0	1	6	5	0	15	1	0	44	16	3	0	0	0	1	.282	.364	.410	.774
25	Diamondbacks	5/21/2023	1-0	ARI	@	PIT	W 8-3	1.000	33	8	9	2	0	1	6	5	1	5	2	0	41	14	3	2	0	0	2	.273	.385	.424	.809
	Total		11-16					.407	929	113	221	46	6	30	109	88	7	212	14	7	1,044	369	82	13	7	4	14	.238	.306	.397	.704