Zack Littell has allowed the most home runs by an active pitcher this season, with 22 HR.

Interpreted as:

most home runs hit by an active pitcher this regular season

	NAME	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	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Zack Littell Z. Littell	22	2025	TBR	16	6	7	.462	16	3.78	66	1	0	0	97.2	96	41	41	11	5	0	1	391	2	6.08	1.01	6.00	2.03	16.9	2.8	1.10	.258	3.78	98	5.14	130	8.85	-13.5
2	Jameson Taillon J. Taillon	21	2025	CHC	16	7	5	.583	16	4.47	70	0	0	0	90.2	81	45	46	19	0	0	0	367	1	6.95	1.89	3.68	2.08	19.1	5.2	1.10	.233	4.57	112	5.17	131	8.04	-12.6
3	Jake Irvin J. Irvin	19	2025	WSH	17	6	3	.667	17	4.73	71	0	0	0	99.0	99	52	53	30	3	0	0	423	1	6.45	2.73	2.37	1.73	16.8	7.1	1.30	.267	4.82	116	5.14	126	9.00	-11.5
4	Zac Gallen Z. Gallen	19	2025	AZ	17	5	9	.357	17	5.75	88	0	0	0	97.0	95	62	65	42	2	0	1	423	1	8.16	3.90	2.10	1.76	20.8	9.9	1.41	.279	6.03	139	5.17	132	8.81	-14.1
5	Bowden Francis B. Francis	19	2025	TOR	14	2	8	.200	14	6.05	54	0	0	0	64.0	71	43	46	27	6	0	0	288	3	7.59	3.80	2.00	2.67	18.8	9.4	1.53	.286	6.47	153	6.79	167	9.98	-19.4
6	JP Sears	18	2025	ATH	16	5	7	.417	16	5.44	63	0	0	0	81.0	89	49	49	19	5	0	0	351	1	7.00	2.11	3.32	2.00	17.9	5.4	1.33	.289	5.44	136	5.30	130	9.89	-11.1
7	Bailey Ober B. Ober	17	2025	MIN	16	4	5	.444	16	4.90	69	1	0	0	86.1	97	47	48	21	4	0	0	377	1	7.19	2.19	3.29	1.77	18.3	5.6	1.37	.301	5.00	123	4.90	121	10.11	-8
8	Tomoyuki Sugano T. Sugano	17	2025	BAL	16	6	4	.600	16	4.06	52	0	0	0	88.2	93	40	41	18	4	0	1	373	1	5.28	1.83	2.89	1.73	13.9	4.8	1.25	.270	4.16	104	5.14	129	9.44	-11.7
9	Jack Flaherty J. Flaherty	16	2025	DET	16	5	9	.357	16	4.80	100	0	0	0	84.1	69	45	46	35	3	0	0	353	1	10.67	3.74	2.86	1.71	28.3	9.9	1.23	.266	4.91	121	4.52	112	7.36	-4.7
10	Michael Lorenzen M. Lorenzen	16	2025	KCR	16	4	8	.333	16	4.91	73	0	0	0	88.0	93	48	50	28	2	0	0	381	10	7.47	2.86	2.61	1.64	19.2	7.3	1.38	.294	5.11	117	4.80	118	9.51	-7.2
11	Brandon Pfaadt B. Pfaadt	16	2025	AZ	16	8	5	.615	16	5.49	65	0	0	0	80.1	92	49	51	20	9	0	1	355	2	7.28	2.24	3.25	1.79	18.3	5.6	1.39	.310	5.71	133	5.13	131	10.31	-11.3
12	Tyler Anderson T. Anderson	15	2025	LAA	16	2	5	.286	16	4.41	70	0	0	0	85.2	84	42	46	33	3	0	3	375	5	7.35	3.47	2.12	1.58	18.7	8.8	1.37	.272	4.83	108	4.98	119	8.82	-7.2
13	Zach Eflin Z. Eflin	15	2025	BAL	11	6	4	.600	11	5.46	42	0	0	0	61.0	73	37	38	11	2	0	0	261	1	6.20	1.62	3.82	2.21	16.1	4.2	1.38	.304	5.61	139	5.53	139	10.77	-10.8
14	Emerson Hancock E. Hancock	15	2025	SEA	14	3	4	.429	14	5.30	52	0	0	0	71.1	74	42	42	27	4	0	0	306	2	6.56	3.41	1.93	1.89	17.0	8.8	1.42	.284	5.30	141	5.65	145	9.34	-14.6
15	Jack Kochanowicz J. Kochanowicz	15	2025	LAA	16	3	8	.273	16	5.49	59	0	0	0	82.0	89	50	51	38	6	0	2	358	3	6.48	4.17	1.55	1.65	16.5	10.6	1.55	.308	5.60	135	5.62	134	9.77	-12.6
16	Tanner Bibee T. Bibee	15	2025	CLE	16	4	8	.333	16	3.90	82	1	0	0	94.2	86	41	44	26	6	0	1	393	1	7.80	2.47	3.15	1.43	20.9	6.6	1.18	.269	4.18	98	4.42	110	8.18	-4.2
17	Andrew Heaney A. Heaney	14	2025	PIT	16	3	7	.300	16	4.48	64	0	0	0	86.1	78	43	43	30	3	0	0	363	2	6.67	3.13	2.13	1.46	17.6	8.3	1.25	.254	4.48	107	4.85	120	8.13	-7.8
18	Kyle Hendricks K. Hendricks	14	2025	LAA	15	5	6	.455	15	4.83	55	0	0	0	82.0	85	44	47	23	4	0	3	351	0	6.04	2.52	2.39	1.54	15.7	6.6	1.32	.278	5.16	118	4.94	118	9.33	-6.5
19	Grant Holmes G. Holmes	14	2025	ATL	17	4	7	.364	16	3.70	103	0	0	0	90.0	71	37	38	42	3	1	0	376	2	10.30	4.20	2.45	1.40	27.4	11.2	1.26	.266	3.80	89	4.31	109	7.10	-3.7
20	Jeffrey Springs J. Springs	14	2025	ATH	17	6	6	.500	15	4.30	75	0	0	0	92.0	80	44	53	34	1	0	0	390	0	7.34	3.33	2.21	1.37	19.2	8.7	1.24	.248	5.18	108	4.56	112	7.83	-5.1
21	Shane Baz S. Baz	14	2025	TBR	16	8	3	.727	16	4.37	86	0	0	0	90.2	79	44	44	35	5	0	0	379	0	8.54	3.47	2.46	1.39	22.7	9.2	1.26	.272	4.37	114	4.51	114	7.84	-6
22	Ryan Pepiot R. Pepiot	14	2025	TBR	17	5	6	.455	17	3.36	92	0	0	0	96.1	81	36	37	30	3	0	0	388	3	8.60	2.80	3.07	1.31	23.7	7.7	1.15	.269	3.46	88	4.08	103	7.57	-1.6
23	Bryce Elder B. Elder	14	2025	ATL	13	2	5	.286	13	5.82	57	0	0	0	68.0	76	44	45	24	3	0	0	300	1	7.54	3.18	2.38	1.85	19.0	8.0	1.47	.307	5.96	141	5.27	133	10.06	-10.2
24	Chase Dollander C. Dollander	14	2025	COL	13	2	8	.200	13	6.06	49	0	0	0	62.1	62	42	46	27	2	0	0	274	1	7.07	3.90	1.81	2.02	17.9	9.9	1.43	.264	6.64	131	5.82	137	8.95	-10.3
25	Walker Buehler W. Buehler	13	2025	BOS	13	5	5	.500	13	6.29	56	0	0	0	63.0	70	44	46	29	8	0	0	289	0	8.00	4.14	1.93	1.86	19.4	10.0	1.57	.311	6.57	148	5.74	140	10.00	-11.3