Blake Snell allowed the fewest H/9 in 2023, with 5.75 per nine innings.

Interpreted as:

lowest h/9 with a minimum of 1 IP per team game by a player in 2023

	NAME	H/9	SEASON	TM	G	W	L	W%	GS	ERA	SO	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-	PRAA
1	Blake Snell B. Snell	5.75	2023	SDP	32	14	9	.609	32	2.25	234	0	0	0	180.0	115	45	47	15	99	3	0	0	742	13	11.70	4.95	2.36	0.75	31.5	13.3	1.19	.256	2.35	54	3.43	79	18
2	Corbin Burnes C. Burnes	6.55	2023	MIL	32	10	8	.556	32	3.39	200	0	0	0	193.2	141	73	77	22	66	8	0	0	784	10	9.29	3.07	3.03	1.02	25.5	8.4	1.07	.244	3.58	77	3.81	86	13.1
3	Gerrit Cole G. Cole	6.76	2023	NYY	33	15	4	.789	33	2.63	222	2	2	0	209.0	157	61	64	20	48	7	0	0	821	4	9.56	2.07	4.63	0.86	27.0	5.8	0.98	.261	2.76	61	3.16	72	28.4
4	Kodai Senga K. Senga	6.82	2023	NYM	29	12	7	.632	29	2.98	202	0	0	0	166.1	126	55	60	17	77	5	0	0	694	14	10.93	4.17	2.62	0.92	29.1	11.1	1.22	.277	3.25	71	3.63	84	13
5	Spencer Strider S. Strider	7.04	2023	ATL	32	19	5	.792	32	3.86	281	0	0	0	186.2	146	80	85	22	58	9	0	1	763	6	13.55	2.80	4.84	1.06	36.8	7.6	1.09	.316	4.10	87	2.85	66	30.3
6	Kyle Bradish K. Bradish	7.04	2023	BAL	30	12	7	.632	30	2.83	168	0	0	0	168.2	132	53	54	14	44	8	0	0	671	9	8.96	2.35	3.82	0.75	25.0	6.6	1.04	.270	2.88	67	3.26	78	17.7
7	Freddy Peralta F. Peralta	7.12	2023	MIL	30	12	10	.545	30	3.86	210	0	0	0	165.2	131	71	77	26	54	6	0	0	680	6	11.41	2.93	3.89	1.41	30.9	7.9	1.12	.273	4.18	88	3.84	87	10.6
8	Merrill Kelly M. Kelly	7.24	2023	ARI	30	12	8	.600	30	3.29	187	0	0	0	177.2	143	65	71	20	69	4	0	0	722	3	9.47	3.50	2.71	1.01	25.9	9.6	1.19	.278	3.60	74	3.84	91	8
9	Luis Castillo L. Castillo	7.31	2023	SEA	33	13	9	.591	33	3.34	219	0	0	0	197.0	160	73	81	28	56	5	0	0	802	3	10.01	2.56	3.91	1.28	27.3	7.0	1.10	.267	3.70	83	3.80	93	6.6
10	Framber Valdez F. Valdez	7.55	2023	HOU	31	12	11	.522	31	3.45	200	2	2	0	198.0	166	76	86	19	57	10	0	0	808	6	9.09	2.59	3.51	0.86	24.8	7.1	1.13	.282	3.91	82	3.49	82	16.5
11	Sonny Gray S. Gray	7.63	2023	MIN	32	8	8	.500	32	2.79	183	0	0	0	184.0	156	57	59	8	55	6	0	0	754	6	8.95	2.69	3.33	0.39	24.3	7.3	1.15	.295	2.89	65	2.82	66	29.8
12	Justin Verlander J. Verlander	7.71	2023	TOT	27	13	8	.619	27	3.22	144	0	0	0	162.1	139	58	63	18	45	5	0	0	669	5	7.98	2.49	3.20	1.00	21.5	6.7	1.13	.265	3.49	76	3.84	90	8.1
13	Zack Wheeler Z. Wheeler	7.88	2023	PHI	32	13	6	.684	32	3.61	212	0	0	0	192.0	168	77	82	20	39	9	0	0	787	1	9.94	1.83	5.44	0.94	26.9	5.0	1.08	.292	3.84	82	3.15	71	27.7
14	Chris Bassitt C. Bassitt	7.92	2023	TOR	33	16	8	.667	33	3.60	186	1	1	0	200.0	176	80	88	28	59	12	0	2	826	4	8.37	2.66	3.15	1.26	22.5	7.1	1.18	.274	3.96	85	4.28	100	0.1
15	Kevin Gausman K. Gausman	7.93	2023	TOR	31	12	9	.571	31	3.16	237	0	0	0	185.0	163	65	72	19	55	3	0	0	763	3	11.53	2.68	4.31	0.92	31.1	7.2	1.18	.321	3.50	75	2.97	69	27.1
16	Cristian Javier C. Javier	7.94	2023	HOU	31	10	4	.714	31	4.56	159	0	0	0	162.0	143	82	85	25	62	7	0	0	687	4	8.83	3.44	2.56	1.39	23.1	9.0	1.27	.272	4.72	108	4.57	108	-6.1
17	Logan Gilbert L. Gilbert	7.98	2023	SEA	32	12	7	.632	32	3.73	189	1	1	0	190.2	169	79	82	29	36	2	0	1	770	6	8.92	1.70	5.25	1.37	24.5	4.7	1.08	.272	3.87	93	3.84	94	5.6
18	Zach Eflin Z. Eflin	8.00	2023	TBR	31	16	8	.667	31	3.50	186	0	0	0	177.2	158	69	69	19	24	3	0	1	703	0	9.42	1.22	7.75	0.96	26.5	3.4	1.02	.295	3.50	85	3.00	72	23.2
19	Zac Gallen Z. Gallen	8.06	2023	ARI	34	17	8	.680	34	3.47	220	1	1	0	210.0	188	81	87	22	47	5	0	0	846	8	9.43	2.01	4.68	0.94	26.0	5.6	1.12	.301	3.73	78	3.26	77	23.4
20	Taijuan Walker T. Walker	8.08	2023	PHI	31	15	6	.714	31	4.38	138	0	0	0	172.2	155	84	87	20	71	8	0	1	733	3	7.19	3.70	1.94	1.04	18.8	9.7	1.31	.272	4.53	100	4.53	102	-1.2
21	Johan Oviedo J. Oviedo	8.16	2023	PIT	32	9	14	.391	32	4.31	158	1	1	0	177.2	161	85	91	19	83	13	0	1	781	7	8.00	4.20	1.90	0.96	20.2	10.6	1.37	.280	4.61	96	4.48	102	-2.2
22	Jesús Luzardo J. Luzardo	8.16	2023	MIA	32	10	10	.500	32	3.58	208	0	0	0	178.2	162	71	79	22	55	6	0	1	741	7	10.48	2.77	3.78	1.11	28.1	7.4	1.21	.311	3.98	80	3.55	81	16.4
23	Pablo López P. López	8.16	2023	MIN	32	11	8	.579	32	3.66	234	1	1	0	194.0	176	79	81	24	48	9	0	1	801	7	10.86	2.23	4.88	1.11	29.2	6.0	1.15	.313	3.76	86	3.33	78	20.5
24	José Berríos J. Berríos	8.21	2023	TOR	32	11	12	.478	32	3.65	184	0	0	0	189.2	173	77	82	25	52	9	0	3	782	4	8.73	2.47	3.54	1.19	23.5	6.6	1.19	.289	3.89	86	3.99	93	6.1
25	Bryce Elder B. Elder	8.24	2023	ATL	31	12	4	.750	31	3.81	128	0	0	0	174.2	160	74	79	19	63	8	0	0	732	11	6.60	3.25	2.03	0.98	17.5	8.6	1.28	.274	4.07	86	4.42	103	-2.7