Pitchers struck out their most hitters in a season in 2019, with 42,793 strikeouts.

	POSITION	SO	SEASON	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	ERA-	FIP	FIP-	H/9	PRAA
1	Pitcher	42,793	2019	21,339	2,429	2,428	.500	4,858	4.50	45	26	1,179	43330.0	41,910	21,650	23,379	6,744	15,848	1,975	4,728	752	186,062	1,786	8.89	3.29	2.70	1.40	23.0	8.5	1.33	.296	4.86	100	4.48	100	8.71	54.4
2	Pitcher	41,968	2021	21,429	2,420	2,427	.499	4,835	4.26	50	29	1,191	42405.2	39,266	20,082	21,888	5,903	15,723	2,093	4,728	701	180,895	1,852	8.91	3.34	2.67	1.25	23.2	8.7	1.30	.290	4.65	100	4.25	100	8.33	19.1
3	Pitcher	41,656	2023	20,491	2,391	2,395	.500	4,837	4.32	34	20	1,228	42838.2	40,530	20,574	22,250	5,811	15,725	2,088	4,713	474	182,950	1,598	8.75	3.30	2.65	1.22	22.8	8.6	1.31	.295	4.67	100	4.32	100	8.51	48.6
4	Pitcher	41,184	2024	20,597	2,419	2,419	.500	4,858	4.07	28	16	1,217	43015.0	39,682	19,454	21,254	5,434	14,877	2,007	4,743	509	181,950	1,437	8.62	3.11	2.77	1.14	22.6	8.2	1.27	.289	4.45	100	4.06	100	8.30	40.3
5	Pitcher	41,122	2018	21,122	2,427	2,427	.500	4,852	4.14	42	19	1,244	43374.1	40,880	19,950	21,528	5,552	15,633	1,915	4,765	929	184,608	1,839	8.53	3.24	2.63	1.15	22.3	8.5	1.30	.293	4.47	100	4.14	100	8.48	21.3
6	Pitcher	40,576	2022	20,718	2,414	2,421	.499	4,832	3.96	36	16	1,232	42777.0	39,327	18,803	20,624	5,153	14,758	2,032	4,695	475	180,721	1,591	8.54	3.10	2.75	1.08	22.5	8.2	1.26	.289	4.34	100	3.95	100	8.27	8.6
7	Pitcher	40,099	2017	20,485	2,430	2,430	.500	4,860	4.36	59	27	1,179	43228.0	42,173	20,919	22,554	6,095	15,816	1,761	4,770	970	185,152	1,809	8.35	3.29	2.54	1.27	21.7	8.5	1.34	.297	4.70	100	4.35	100	8.78	11.9
8	Pitcher	38,977	2016	20,135	2,427	2,426	.500	4,856	4.19	83	36	1,276	43281.2	42,245	20,146	21,729	5,603	15,081	1,649	4,749	931	184,466	1,806	8.10	3.14	2.58	1.17	21.1	8.2	1.32	.298	4.52	100	4.18	100	8.78	12.5
9	Pitcher	37,438	2015	19,937	2,429	2,429	.500	4,858	3.96	104	51	1,292	43381.2	42,073	19,094	20,625	4,900	14,064	1,595	4,730	951	183,501	1,757	7.77	2.92	2.66	1.02	20.4	7.7	1.29	.296	4.28	100	3.95	100	8.73	11.1
10	Pitcher	37,433	2014	19,301	2,429	2,429	.500	4,860	3.74	118	65	1,264	43596.1	41,575	18,115	19,747	4,183	14,008	1,652	4,722	985	183,847	1,695	7.73	2.89	2.67	0.86	20.4	7.6	1.27	.295	4.08	100	3.73	100	8.58	12.9
11	Pitcher	36,704	2013	19,182	2,431	2,430	.500	4,862	3.87	124	57	1,266	43643.0	42,083	18,743	20,248	4,660	14,632	1,536	4,725	1,017	184,824	1,736	7.57	3.02	2.51	0.96	19.9	7.9	1.30	.294	4.18	100	3.86	100	8.68	8.8
12	Pitcher	36,422	2012	19,370	2,429	2,429	.500	4,860	4.01	128	69	1,261	43343.1	42,046	19,331	21,008	4,932	14,702	1,494	4,720	1,055	184,122	1,541	7.56	3.05	2.48	1.02	19.8	8.0	1.31	.293	4.36	100	4.01	100	8.73	24.2
13	Pitcher	34,486	2011	18,742	2,428	2,429	.500	4,858	3.94	173	75	1,243	43520.0	42,262	19,063	20,804	4,551	15,013	1,553	4,677	1,231	185,212	1,558	7.13	3.10	2.30	0.94	18.6	8.1	1.32	.291	4.30	100	3.93	100	8.74	7
14	Pitcher	34,304	2010	18,775	2,430	2,429	.500	4,860	4.08	165	59	1,204	43295.1	42,544	19,624	21,303	4,612	15,774	1,548	4,687	1,214	185,509	1,674	7.13	3.28	2.17	0.96	18.5	8.5	1.35	.293	4.43	100	4.07	100	8.84	7.8
15	Pitcher	33,586	2009	19,086	2,430	2,429	.500	4,860	4.32	152	63	1,202	43261.0	43,507	20,764	22,404	5,039	16,609	1,589	4,697	1,179	187,019	1,600	6.99	3.46	2.02	1.05	18.0	8.9	1.39	.295	4.66	100	4.31	100	9.05	10.3
16	Pitcher	32,883	2008	19,009	2,428	2,427	.500	4,856	4.32	136	54	1,184	43354.2	43,971	20,829	22,584	4,878	16,337	1,672	4,717	1,310	187,621	1,575	6.83	3.39	2.01	1.01	17.5	8.7	1.39	.296	4.69	100	4.32	100	9.13	-6.7
17	Pitcher	32,400	2001	17,618	2,428	2,428	.500	4,858	4.42	199	74	1,210	43281.2	43,871	21,240	23,192	5,457	15,799	1,889	4,653	1,384	186,945	1,484	6.74	3.29	2.05	1.13	17.3	8.5	1.38	.292	4.82	100	4.41	100	9.12	-0.8
18	Pitcher	32,188	2007	19,287	2,431	2,431	.500	4,862	4.47	112	43	1,198	43418.2	44,973	21,581	23,320	4,956	16,075	1,754	4,743	1,323	188,594	1,498	6.67	3.33	2.00	1.03	17.1	8.5	1.41	.299	4.83	100	4.46	100	9.32	-20.5
19	Pitcher	31,889	1998	16,822	2,430	2,430	.500	4,864	4.43	302	101	1,265	43430.2	44,485	21,386	23,296	5,064	16,445	1,586	4,558	1,067	188,262	1,603	6.61	3.41	1.94	1.05	16.9	8.7	1.40	.296	4.83	100	4.42	100	9.22	1.2
20	Pitcher	31,824	2004	18,262	2,428	2,428	.500	4,856	4.46	150	69	1,230	43384.1	44,512	21,521	23,370	5,451	16,217	1,850	4,697	1,381	188,496	1,477	6.60	3.36	1.96	1.13	16.9	8.6	1.40	.293	4.85	100	4.46	100	9.23	38.3
21	Pitcher	31,655	2006	18,694	2,429	2,429	.500	4,858	4.53	144	63	1,201	43258.0	45,073	21,758	23,599	5,386	15,847	1,817	4,714	1,410	188,071	1,522	6.59	3.30	2.00	1.12	16.8	8.4	1.41	.298	4.91	100	4.52	100	9.38	-21.6
22	Pitcher	31,393	2002	17,607	2,425	2,425	.500	4,852	4.28	214	87	1,224	43265.1	43,270	20,569	22,407	5,058	16,246	1,746	4,634	1,452	186,602	1,494	6.53	3.38	1.93	1.05	16.8	8.7	1.38	.289	4.66	100	4.27	100	9.00	9.4
23	Pitcher	31,353	2000	17,211	2,427	2,428	.500	4,858	4.77	234	72	1,178	43237.1	45,226	22,902	24,954	5,690	18,230	1,571	4,617	1,210	190,211	1,516	6.53	3.79	1.72	1.18	16.5	9.6	1.47	.296	5.19	100	4.76	100	9.41	-18.7
24	Pitcher	31,114	1999	17,270	2,427	2,427	.500	4,856	4.71	237	64	1,217	43205.1	45,316	22,598	24,682	5,526	17,883	1,578	4,613	1,107	189,654	1,632	6.48	3.73	1.74	1.15	16.4	9.4	1.46	.298	5.14	100	4.70	100	9.44	16
25	Pitcher	30,801	2003	17,816	2,429	2,429	.500	4,860	4.40	209	72	1,198	43334.1	44,057	21,185	22,978	5,207	15,888	1,849	4,650	1,316	187,445	1,546	6.40	3.30	1.94	1.08	16.4	8.5	1.38	.291	4.77	100	4.39	100	9.15	3.8