Between the 2015 and 2019 seasons, the Houston Astros fanned the most batters by a team, with 7,627 strikeouts.

	TEAM	SO	G	W%	W	L	GS	ERA	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Astros	7,627	810	.594	481	329	810	3.71	12	7	221	7272.1	6,432	2,995	3,193	903	2,281	259	57	30,164	353	9.44	2.82	3.34	1.12	25.3	7.6	1.20	.290	3.95	7.96
2	Dodgers	7,539	811	.598	485	326	811	3.46	14	7	237	7265.0	6,289	2,789	3,036	858	2,115	258	179	29,880	229	9.34	2.62	3.56	1.06	25.2	7.1	1.16	.284	3.76	7.79
3	Yankees	7,491	810	.574	465	345	810	4.00	8	4	231	7234.0	6,707	3,213	3,468	1,013	2,423	268	70	30,566	341	9.32	3.01	3.09	1.26	24.5	7.9	1.26	.294	4.31	8.34
4	Indians	7,471	808	.571	461	347	808	3.67	32	14	195	7213.1	6,528	2,942	3,185	917	2,149	248	124	29,882	241	9.32	2.68	3.48	1.14	25.0	7.2	1.20	.294	3.97	8.14
5	Red Sox	7,351	810	.563	456	354	810	4.09	20	4	201	7300.0	6,940	3,320	3,590	940	2,550	336	81	31,080	306	9.06	3.14	2.88	1.16	23.7	8.2	1.30	.301	4.43	8.56
6	Nationals	7,203	810	.556	450	360	810	3.86	10	6	213	7226.1	6,598	3,102	3,325	889	2,331	309	197	30,299	225	8.97	2.90	3.09	1.11	23.8	7.7	1.24	.292	4.14	8.22
7	Rays	7,106	810	.511	414	396	810	3.86	2	2	253	7247.1	6,543	3,107	3,361	923	2,425	239	146	30,322	339	8.82	3.01	2.93	1.15	23.4	8.0	1.24	.286	4.17	8.13
8	Cubs	7,088	811	.581	471	339	811	3.64	15	8	208	7286.2	6,390	2,948	3,221	843	2,612	321	140	30,492	325	8.75	3.23	2.71	1.04	23.2	8.6	1.24	.283	3.98	7.89
9	Mets	7,073	810	.506	410	400	810	4.06	10	6	218	7266.0	7,045	3,279	3,537	913	2,399	265	205	30,901	224	8.76	2.97	2.95	1.13	22.9	7.8	1.30	.303	4.38	8.73
10	Diamondbacks	6,890	810	.504	408	402	810	4.15	6	5	202	7287.0	7,035	3,362	3,649	949	2,657	262	228	31,135	320	8.51	3.28	2.59	1.17	22.1	8.5	1.33	.299	4.51	8.69
11	Padres	6,814	810	.431	349	461	810	4.44	4	1	204	7200.0	7,037	3,550	3,873	980	2,621	318	154	30,904	306	8.52	3.28	2.60	1.23	22.0	8.5	1.34	.300	4.84	8.80
12	Cardinals	6,706	810	.553	448	362	810	3.73	8	7	238	7262.2	6,822	3,011	3,295	800	2,583	300	212	30,790	245	8.31	3.20	2.60	0.99	21.8	8.4	1.29	.295	4.08	8.45
13	Brewers	6,706	811	.508	412	399	811	4.10	2	0	239	7235.1	6,886	3,293	3,592	937	2,725	306	176	30,865	260	8.34	3.39	2.46	1.17	21.7	8.8	1.33	.295	4.47	8.57
14	Phillies	6,618	810	.446	361	449	810	4.51	9	5	191	7213.2	7,349	3,613	3,909	1,054	2,527	306	179	31,143	293	8.26	3.15	2.62	1.32	21.3	8.1	1.37	.305	4.88	9.17
15	Pirates	6,611	809	.498	402	406	809	4.16	10	4	212	7255.0	7,237	3,353	3,689	887	2,578	355	163	31,250	341	8.20	3.20	2.56	1.10	21.2	8.2	1.35	.305	4.58	8.98
16	Reds	6,603	810	.422	342	468	810	4.64	7	3	180	7204.1	7,096	3,716	4,007	1,125	2,879	321	201	31,241	260	8.25	3.60	2.29	1.41	21.1	9.2	1.38	.294	5.01	8.86
17	Angels	6,459	810	.483	391	419	810	4.34	8	7	185	7182.2	6,978	3,460	3,701	1,070	2,556	318	125	30,643	350	8.09	3.20	2.53	1.34	21.1	8.3	1.33	.292	4.64	8.74
18	Braves	6,449	809	.487	394	415	809	4.31	7	4	203	7221.2	6,996	3,461	3,760	895	2,864	314	215	31,110	325	8.04	3.57	2.25	1.12	20.7	9.2	1.37	.296	4.69	8.72
19	Blue Jays	6,433	810	.491	398	412	810	4.33	10	2	194	7239.1	7,079	3,481	3,780	995	2,562	302	99	30,991	306	8.00	3.19	2.51	1.24	20.8	8.3	1.33	.294	4.70	8.80
20	Mariners	6,412	810	.490	397	413	810	4.34	15	10	227	7248.1	7,119	3,499	3,809	1,086	2,346	301	145	30,843	329	7.96	2.91	2.73	1.35	20.8	7.6	1.31	.291	4.73	8.84
21	White Sox	6,393	809	.439	355	454	809	4.51	20	7	172	7170.2	7,091	3,597	3,916	1,023	2,862	338	155	31,075	365	8.02	3.59	2.23	1.28	20.6	9.2	1.39	.297	4.92	8.90
22	Marlins	6,360	808	.429	347	461	808	4.48	4	3	181	7191.0	6,910	3,578	3,799	914	2,950	349	271	31,015	294	7.96	3.69	2.16	1.14	20.5	9.5	1.37	.293	4.75	8.65
23	Giants	6,345	810	.475	385	425	810	4.04	22	10	193	7287.0	6,975	3,272	3,506	878	2,409	256	163	30,792	232	7.84	2.98	2.63	1.08	20.6	7.8	1.29	.292	4.33	8.61
24	Rockies	6,278	811	.483	392	419	811	4.87	8	5	199	7194.1	7,517	3,893	4,164	1,008	2,772	277	157	31,351	340	7.85	3.47	2.26	1.26	20.0	8.8	1.43	.310	5.21	9.40
25	Twins	6,243	810	.501	406	404	810	4.48	14	5	200	7228.2	7,491	3,600	3,906	1,004	2,400	292	141	31,191	319	7.77	2.99	2.60	1.25	20.0	7.7	1.37	.305	4.86	9.33