Kyle Hendricks allowed the most hits in 2021, with 200 hits.

	NAME	H	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	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	Kyle Hendricks K. Hendricks	200	2021	CHC	32	14	7	.667	32	4.77	131	1	0	0	181.0	96	101	31	44	13	0	3	785	2	6.51	2.19	2.98	1.54	16.7	5.6	1.35	.299	5.02	115	4.89	116	9.94	-14.1
2	Cole Irvin C. Irvin	195	2021	OAK	32	10	15	.400	32	4.24	125	0	0	0	178.1	84	94	23	42	9	0	0	768	3	6.31	2.12	2.98	1.16	16.3	5.5	1.33	.302	4.74	103	4.29	104	9.84	-3.2
3	Jordan Lyles J. Lyles	194	2021	TEX	32	10	13	.435	30	5.15	146	0	0	0	180.0	103	104	38	56	7	1	0	769	9	7.30	2.80	2.61	1.90	19.0	7.3	1.39	.299	5.20	117	5.33	121	9.70	-17.8
4	Patrick Corbin P. Corbin	192	2021	WSH	31	9	16	.360	31	5.82	143	0	0	0	171.2	111	114	37	60	3	0	2	751	0	7.50	3.15	2.38	1.94	19.0	8.0	1.47	.305	5.98	139	5.40	126	10.07	-21
5	Dallas Keuchel D. Keuchel	189	2021	CWS	32	9	9	.500	30	5.28	95	0	0	0	162.0	95	105	25	59	7	0	1	720	5	5.28	3.28	1.61	1.39	13.2	8.2	1.53	.307	5.83	121	5.22	117	10.50	-13.1
6	Chris Flexen C. Flexen	185	2021	SEA	31	14	6	.700	31	3.61	125	0	0	0	179.2	72	74	19	40	4	0	0	741	2	6.26	2.00	3.13	0.95	16.9	5.4	1.25	.300	3.71	87	3.88	94	9.27	5.3
7	Nathan Eovaldi N. Eovaldi	182	2021	BOS	32	11	9	.550	32	3.75	195	0	0	0	182.1	76	81	15	35	7	0	2	764	6	9.63	1.73	5.57	0.74	25.5	4.6	1.19	.326	4.00	82	2.78	64	8.98	30.9
8	Luis Castillo L. Castillo	181	2021	CIN	33	8	16	.333	33	3.98	192	0	0	0	187.2	83	94	19	75	7	0	4	803	1	9.21	3.60	2.56	0.91	23.9	9.3	1.36	.318	4.51	90	3.74	84	8.68	14.5
9	Sean Manaea S. Manaea	179	2021	OAK	32	11	10	.524	32	3.91	194	2	2	0	179.1	78	79	25	41	9	0	0	754	5	9.74	2.06	4.73	1.25	25.7	5.4	1.23	.318	3.96	95	3.65	88	8.98	10
10	Antonio Senzatela A. Senzatela	178	2021	COL	28	4	10	.286	28	4.42	105	0	0	0	156.2	77	84	12	32	9	0	1	670	4	6.03	1.84	3.28	0.69	15.7	4.8	1.34	.324	4.83	92	3.60	81	10.23	14.4
11	J.A. Happ	177	2021	TOT	30	10	8	.556	30	5.79	122	0	0	0	152.1	98	100	30	48	3	0	0	671	4	7.21	2.84	2.54	1.77	18.2	7.2	1.48	.314	5.91	137	5.13	122	10.46	-15.8
12	Eduardo Rodriguez E. Rodriguez	172	2021	BOS	32	13	8	.619	31	4.74	185	0	0	0	157.2	83	87	19	47	2	0	0	675	0	10.56	2.68	3.94	1.08	27.4	7.0	1.39	.363	4.97	103	3.31	77	9.82	17.5
13	Sandy Alcantara S. Alcantara	171	2021	MIA	33	9	15	.375	33	3.19	201	1	0	0	205.2	73	85	21	50	10	0	2	837	6	8.80	2.19	4.02	0.92	24.0	6.0	1.07	.270	3.72	76	3.41	82	7.48	17.2
14	Tyler Anderson T. Anderson	170	2021	TOT	31	7	11	.389	31	4.53	134	0	0	0	167.0	84	87	27	38	1	0	2	703	1	7.22	2.05	3.53	1.46	19.1	5.4	1.25	.284	4.69	108	4.36	104	9.16	-3
15	Hyun Jin Ryu H. Jin Ryu	170	2021	TOR	31	14	10	.583	31	4.37	143	1	1	0	169.0	82	85	24	37	2	0	0	701	2	7.62	1.97	3.86	1.28	20.4	5.3	1.22	.295	4.53	97	4.01	95	9.05	4.2
16	Zack Wheeler Z. Wheeler	169	2021	PHI	32	14	10	.583	32	2.78	247	3	2	0	213.1	66	72	16	46	8	0	1	849	6	10.42	1.94	5.37	0.68	29.1	5.4	1.01	.288	3.04	66	2.58	60	7.13	40.7
17	Adam Wainwright A. Wainwright	168	2021	STL	32	17	7	.708	32	3.05	174	3	1	0	206.1	70	72	21	50	9	0	3	828	4	7.59	2.18	3.48	0.92	21.0	6.0	1.06	.256	3.14	75	3.66	88	7.33	11.5
18	Wade Miley W. Miley	166	2021	CIN	28	12	7	.632	28	3.37	125	1	1	0	163.0	61	64	17	50	3	0	0	690	2	6.90	2.76	2.50	0.94	18.1	7.2	1.33	.301	3.53	76	3.96	89	9.17	8.8
19	Germán Márquez G. Márquez	165	2021	COL	32	12	11	.522	32	4.40	176	3	1	0	180.0	88	92	21	64	4	0	5	756	15	8.80	3.20	2.75	1.05	23.3	8.5	1.27	.293	4.60	91	3.86	87	8.25	11.7
20	Aaron Nola A. Nola	165	2021	PHI	32	9	9	.500	32	4.63	223	1	1	0	180.2	93	95	26	39	9	0	1	749	0	11.11	1.94	5.72	1.30	29.8	5.2	1.13	.308	4.73	110	3.36	78	8.22	19.1
21	Zack Greinke Z. Greinke	164	2021	HOU	30	11	6	.647	29	4.16	120	1	0	0	171.0	79	82	30	36	2	0	0	697	3	6.32	1.89	3.33	1.58	17.2	5.2	1.17	.263	4.32	97	4.71	111	8.63	-9.1
22	Frankie Montas F. Montas	164	2021	OAK	32	13	9	.591	32	3.37	207	0	0	0	187.0	70	79	20	57	7	0	1	778	11	9.96	2.74	3.63	0.96	26.6	7.3	1.18	.296	3.80	82	3.37	81	7.89	16.5
23	Merrill Kelly M. Kelly	163	2021	ARI	27	7	11	.389	27	4.44	130	0	0	0	158.0	78	82	21	41	4	0	3	667	2	7.41	2.34	3.17	1.20	19.5	6.1	1.29	.301	4.67	106	4.10	100	9.28	0
24	Ryan Yarbrough R. Yarbrough	163	2021	TBR	30	9	7	.563	21	5.11	117	1	0	0	155.0	88	96	25	27	9	0	2	653	1	6.79	1.57	4.33	1.45	17.9	4.1	1.23	.291	5.57	125	4.45	108	9.46	-6.4
25	Zach Davies Z. Davies	162	2021	CHC	32	6	12	.333	32	5.78	114	0	0	0	148.0	95	99	25	75	5	0	2	668	0	6.93	4.56	1.52	1.52	17.1	11.2	1.60	.305	6.02	139	5.44	130	9.85	-20.7