Tarik Skubal struck out the most batters in May 2025, with 59 strikeouts.

	NAME	SO	MONTH	G	W	L	W%	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Tarik Skubal T. Skubal	59	May 2025	6	2	0	1.000	6	2.20	1	1	0	41.0	22	10	10	3	2	2	0	0	146	1	12.95	0.44	29.50	0.66	40.4	1.4	0.59	.238	2.20	4.83
2	Robbie Ray R. Ray	45	May 2025	6	4	1	.800	6	1.38	0	0	0	39.0	23	6	6	0	11	0	0	0	147	2	10.38	2.54	4.09	0.00	30.6	7.5	0.87	.253	1.38	5.31
3	Will Warren W. Warren	43	May 2025	6	2	2	.500	6	4.82	0	0	0	28.0	28	15	17	2	12	1	0	0	127	2	13.82	3.86	3.58	0.64	33.9	9.4	1.43	.377	5.46	9.00
4	Sonny Gray S. Gray	43	May 2025	6	3	1	.750	6	3.71	0	0	0	34.0	35	14	16	4	7	0	0	0	141	0	11.38	1.85	6.14	1.06	30.5	5.0	1.24	.356	4.24	9.26
5	MacKenzie Gore M. Gore	42	May 2025	5	0	2	.000	5	2.63	0	0	0	27.1	25	8	8	3	12	1	0	0	114	1	13.83	3.95	3.50	0.99	36.8	10.5	1.35	.393	2.63	8.23
6	Dylan Cease D. Cease	42	May 2025	6	0	2	.000	6	3.71	0	0	0	34.0	25	14	14	5	9	1	0	0	133	2	11.12	2.38	4.67	1.32	31.6	6.8	1.00	.263	3.71	6.62
7	Framber Valdez F. Valdez	42	May 2025	6	4	1	.800	6	2.36	1	0	0	42.0	29	11	11	3	11	1	0	0	159	2	9.00	2.36	3.82	0.64	26.4	6.9	0.95	.255	2.36	6.21
8	Chris Sale C. Sale	40	May 2025	5	2	0	1.000	5	1.11	0	0	0	32.1	24	4	5	2	10	3	0	0	129	0	11.13	2.78	4.00	0.56	31.0	7.8	1.05	.297	1.39	6.68
9	Jesús Luzardo J. Luzardo	40	May 2025	6	2	1	.667	6	5.56	0	0	0	34.0	43	21	21	4	12	1	0	0	151	0	10.59	3.18	3.33	1.06	26.5	7.9	1.62	.415	5.56	11.38
10	Ben Brown B. Brown	40	May 2025	6	1	1	.500	5	5.46	0	0	0	31.1	30	19	19	3	5	0	0	0	128	1	11.49	1.44	8.00	0.86	31.3	3.9	1.12	.338	5.46	8.62
11	Garrett Crochet G. Crochet	39	May 2025	5	1	2	.333	5	2.03	0	0	0	31.0	28	7	7	4	6	0	0	0	124	0	11.32	1.74	6.50	1.16	31.5	4.8	1.10	.320	2.03	8.13
12	Hunter Brown H. Brown	39	May 2025	5	3	2	.600	5	2.93	1	0	0	30.2	22	10	10	5	9	0	0	0	119	0	11.45	2.64	4.33	1.47	32.8	7.6	1.01	.258	2.93	6.46
13	Merrill Kelly M. Kelly	39	May 2025	6	2	1	.667	6	3.22	0	0	0	36.1	31	13	15	3	6	0	0	0	144	0	9.66	1.49	6.50	0.74	27.1	4.2	1.02	.292	3.72	7.68
14	Carlos Rodón C. Rodón	38	May 2025	5	3	0	1.000	5	1.47	0	0	0	30.2	20	5	5	2	7	0	0	0	120	1	11.15	2.05	5.43	0.59	31.7	5.8	0.88	.247	1.47	5.87
15	Spencer Schwellenbach S. Schwellenbach	38	May 2025	6	3	2	.600	6	3.41	0	0	0	37.0	34	14	17	5	6	1	0	0	150	0	9.24	1.46	6.33	1.22	25.3	4.0	1.08	.290	4.14	8.27
16	Grant Holmes G. Holmes	38	May 2025	6	1	3	.250	6	3.22	0	0	0	36.1	30	13	13	6	10	1	0	0	148	1	9.41	2.48	3.80	1.49	25.7	6.8	1.10	.258	3.22	7.43
17	Paul Skenes P. Skenes	38	May 2025	6	1	3	.250	6	1.91	1	0	0	37.2	25	8	8	3	14	1	0	0	151	0	9.08	3.35	2.71	0.72	25.2	9.3	1.04	.232	1.91	5.97
18	Zack Wheeler Z. Wheeler	37	May 2025	5	4	1	.800	5	2.25	0	0	0	32.0	17	8	8	2	9	0	0	0	119	0	10.41	2.53	4.11	0.56	31.1	7.6	0.81	.211	2.25	4.78
19	Max Fried M. Fried	37	May 2025	6	2	1	.667	6	2.65	0	0	0	37.1	27	11	11	3	7	1	0	0	142	2	8.92	1.69	5.29	0.72	26.1	4.9	0.91	.255	2.65	6.51
20	José Berríos J. Berríos	37	May 2025	6	1	1	.500	6	3.50	0	0	0	36.0	30	14	14	4	13	3	0	1	149	0	9.25	3.25	2.85	1.00	24.8	8.7	1.19	.283	3.50	7.50
21	Dustin May D. May	36	May 2025	5	2	3	.400	5	4.45	0	0	0	28.1	27	14	14	6	8	4	0	0	120	0	11.44	2.54	4.50	1.91	30.0	6.7	1.24	.318	4.45	8.58
22	Chad Patrick C. Patrick	35	May 2025	7	2	2	.500	7	3.32	0	0	0	38.0	36	14	14	2	7	3	0	0	159	0	8.29	1.66	5.00	0.47	22.0	4.4	1.13	.304	3.32	8.53
23	Matthew Boyd M. Boyd	34	May 2025	5	3	0	1.000	5	3.54	0	0	0	28.0	27	11	12	4	2	3	0	0	112	1	10.93	0.64	17.00	1.29	30.4	1.8	1.04	.333	3.86	8.68
24	Logan Webb L. Webb	34	May 2025	5	2	3	.400	5	2.81	0	0	0	32.0	33	10	13	3	6	0	0	0	134	0	9.56	1.69	5.67	0.84	25.4	4.5	1.22	.330	3.66	9.28
25	Jack Flaherty J. Flaherty	34	May 2025	5	2	3	.400	5	4.67	0	0	0	27.0	22	14	15	6	8	1	0	0	109	0	11.33	2.67	4.25	2.00	31.2	7.3	1.11	.267	5.00	7.33