Jake Irvin had the most home runs allowed / 9 by a starting pitcher this season, with 4.22.

	NAME	HR/9	HR	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	K%	BB%	WHIP	BABIP	RA	H/9
1	Jake Irvin J. Irvin	4.22	38	2025	WSH	33	9	13	.409	33	5.70	124	0	0	0	180.0	195	114	120	62	6	0	0	787	3	6.20	3.10	2.00	15.8	7.9	1.43	.282	6.00	9.75
2	Zack Littell Z. Littell	4	36	2025	TOT	32	10	8	.556	32	3.81	130	1	0	0	186.2	174	79	81	32	7	0	1	759	3	6.27	1.54	4.06	17.1	4.2	1.10	.249	3.91	8.39
3	Tomoyuki Sugano T. Sugano	3.67	33	2025	BAL	30	10	10	.500	30	4.64	106	0	0	0	157.0	173	81	85	36	8	0	2	675	3	6.08	2.06	2.94	15.7	5.3	1.33	.285	4.87	9.92
4	Zac Gallen Z. Gallen	3.44	31	2025	AZ	33	13	15	.464	33	4.83	175	0	0	0	192.0	176	103	109	66	4	0	1	813	2	8.20	3.09	2.65	21.5	8.1	1.26	.270	5.11	8.25
5	Shota Imanaga S. Imanaga	3.44	31	2025	CHC	25	9	8	.529	25	3.73	117	0	0	0	144.2	117	60	62	26	1	0	0	567	1	7.28	1.62	4.50	20.6	4.6	0.99	.219	3.86	7.28
6	Bailey Ober B. Ober	3.33	30	2025	MIN	27	6	9	.400	27	5.10	120	1	0	0	146.1	159	83	84	31	5	0	0	624	1	7.38	1.91	3.87	19.2	5.0	1.30	.295	5.17	9.78
7	JP Sears	3.33	30	2025	TOT	27	9	11	.450	27	5.04	117	0	0	0	135.2	143	76	79	36	6	0	0	583	1	7.76	2.39	3.25	20.1	6.2	1.32	.287	5.24	9.49
8	Miles Mikolas M. Mikolas	3.22	29	2025	STL	31	8	11	.421	31	4.84	100	0	0	0	156.1	169	84	87	37	3	0	1	669	1	5.76	2.13	2.70	14.9	5.5	1.32	.280	5.01	9.73
9	Tyler Anderson T. Anderson	3.11	28	2025	LAA	26	2	8	.200	26	4.56	104	0	0	0	136.1	135	69	73	57	3	0	4	599	5	6.87	3.76	1.82	17.4	9.5	1.41	.263	4.82	8.91
10	Chris Paddack C. Paddack	3	27	2025	TOT	28	5	12	.294	28	5.14	102	0	0	0	145.1	153	83	87	36	3	0	0	617	5	6.32	2.23	2.83	16.5	5.8	1.30	.281	5.39	9.47
11	Tanner Bibee T. Bibee	3	27	2025	CLE	31	12	11	.522	31	4.24	162	2	1	0	182.1	170	86	93	54	10	0	1	762	3	8.00	2.67	3.00	21.3	7.1	1.23	.281	4.59	8.39
12	Seth Lugo S. Lugo	3	27	2025	KCR	26	8	7	.533	26	4.15	125	0	0	0	145.1	133	67	70	55	6	0	1	611	5	7.74	3.41	2.27	20.5	9.0	1.29	.266	4.33	8.24
13	Shane Baz S. Baz	2.89	26	2025	TBR	31	10	12	.455	31	4.87	176	0	0	0	166.1	158	90	91	64	9	0	0	711	3	9.52	3.46	2.75	24.8	9.0	1.33	.303	4.92	8.55
14	Jacob deGrom J. deGrom	2.89	26	2025	TEX	30	12	8	.600	30	2.97	185	0	0	0	172.2	122	57	57	37	3	0	0	669	3	9.64	1.93	5.00	27.7	5.5	0.92	.230	2.97	6.36
15	Bryan Woo B. Woo	2.89	26	2025	SEA	30	15	7	.682	30	2.94	198	0	0	0	186.2	137	61	64	36	4	0	0	731	3	9.55	1.74	5.50	27.1	4.9	0.93	.238	3.09	6.61
16	Brandon Pfaadt B. Pfaadt	2.89	26	2025	AZ	33	13	9	.591	33	5.25	147	0	0	0	176.2	198	103	107	37	12	0	2	767	3	7.49	1.88	3.97	19.2	4.8	1.33	.316	5.45	10.09
17	Jeffrey Springs J. Springs	2.89	26	2025	ATH	30	11	10	.524	30	4.09	123	0	0	0	158.1	143	72	82	52	3	0	0	662	0	6.99	2.96	2.37	18.6	7.9	1.23	.255	4.66	8.13
18	Ryan Pepiot R. Pepiot	2.89	26	2025	TBR	31	11	12	.478	31	3.86	167	0	0	0	167.2	134	72	77	61	6	0	0	679	5	8.96	3.27	2.74	24.6	9.0	1.16	.258	4.13	7.19
19	Kyle Hendricks K. Hendricks	2.78	25	2025	LAA	31	8	10	.444	31	4.76	114	0	0	0	164.2	167	87	92	43	5	0	3	695	0	6.23	2.35	2.65	16.4	6.2	1.28	.280	5.03	9.13
20	Michael Lorenzen M. Lorenzen	2.78	25	2025	KCR	26	7	11	.389	26	4.67	126	0	0	0	140.2	149	73	76	39	6	0	0	603	12	8.06	2.50	3.23	20.9	6.5	1.34	.305	4.86	9.53
21	Eduardo Rodriguez E. Rodriguez	2.78	25	2025	AZ	29	9	9	.500	29	5.02	143	0	0	0	154.1	178	86	94	60	1	0	2	694	4	8.34	3.50	2.38	20.6	8.6	1.54	.329	5.48	10.38
22	Mitchell Parker M. Parker	2.78	25	2025	WSH	30	8	16	.333	30	5.85	101	0	0	0	158.1	175	103	115	57	4	0	0	702	2	5.74	3.24	1.77	14.4	8.1	1.47	.291	6.54	9.95
23	Joe Ryan J. Ryan	2.78	25	2025	MIN	30	13	10	.565	30	3.36	190	0	0	0	166.0	135	62	66	37	12	0	0	670	0	10.30	2.01	5.14	28.4	5.5	1.04	.271	3.58	7.32
24	José Berríos J. Berríos	2.78	25	2025	TOR	30	9	5	.643	30	4.06	135	0	0	0	164.0	158	74	83	54	7	0	2	688	1	7.41	2.96	2.50	19.6	7.8	1.29	.285	4.55	8.67
25	Sonny Gray S. Gray	2.78	25	2025	STL	32	14	8	.636	32	4.28	201	1	1	0	180.2	185	86	93	38	3	0	0	753	2	10.01	1.89	5.29	26.7	5.0	1.23	.329	4.63	9.22