Zac Gallen has allowed the most runs this season, with 65 runs.

Interpreted as:

pitcher giving up most runs this regular season

	NAME	R	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	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	Zac Gallen Z. Gallen	65	2025	AZ	17	5	9	.357	17	5.75	88	0	0	0	97.0	95	62	19	42	2	0	1	423	1	8.16	3.90	2.10	1.76	20.8	9.9	1.41	.279	6.03	139	5.16	132	8.81	-14.1
2	Germán Márquez G. Márquez	62	2025	COL	16	3	9	.250	16	5.79	56	0	0	0	77.2	103	50	8	24	5	0	0	362	4	6.49	2.78	2.33	0.93	15.5	6.6	1.64	.353	7.18	125	4.08	97	11.94	1.3
3	Antonio Senzatela A. Senzatela	62	2025	COL	16	3	10	.231	15	6.48	40	0	0	0	76.1	117	55	12	28	1	0	0	366	8	4.72	3.30	1.43	1.41	10.9	7.7	1.90	.368	7.31	140	5.20	123	13.79	-7.8
4	Luis Severino L. Severino	57	2025	ATH	17	2	8	.200	17	4.83	68	0	0	0	100.2	105	54	9	31	6	0	1	440	1	6.08	2.77	2.19	0.80	15.5	7.0	1.35	.294	5.10	121	3.98	98	9.39	0.9
5	Sandy Alcantara S. Alcantara	56	2025	MIA	15	4	8	.333	15	6.69	59	0	0	0	74.0	74	55	10	34	2	0	0	330	4	7.18	4.14	1.74	1.22	17.9	10.3	1.46	.284	6.81	160	4.69	117	9.00	-5.5
6	Ben Brown B. Brown	55	2025	CHC	16	4	6	.400	14	6.13	91	0	0	0	79.1	94	54	13	27	4	0	0	359	1	10.32	3.06	3.37	1.47	25.3	7.5	1.53	.362	6.24	154	4.07	103	10.66	-1.3
7	Kyle Freeland K. Freeland	54	2025	COL	14	1	8	.111	14	5.13	57	0	0	0	73.2	98	42	8	15	2	0	1	328	1	6.96	1.83	3.80	0.98	17.4	4.6	1.53	.366	6.60	111	3.62	86	11.97	4.8
8	Trevor Williams T. Williams	52	2025	WSH	16	3	9	.250	16	5.65	61	0	0	0	79.2	97	50	9	20	2	0	0	354	1	6.89	2.26	3.05	1.02	17.2	5.6	1.47	.336	5.87	139	3.83	94	10.96	2
9	Taj Bradley T. Bradley	52	2025	TBR	16	5	5	.500	16	4.57	77	0	0	0	86.2	76	44	12	35	4	0	0	366	0	8.00	3.63	2.20	1.25	21.0	9.6	1.28	.269	5.40	119	4.44	113	7.89	-5.1
10	Jack Kochanowicz J. Kochanowicz	51	2025	LAA	16	3	8	.273	16	5.49	59	0	0	0	82.0	89	50	15	38	6	0	2	358	3	6.48	4.17	1.55	1.65	16.5	10.6	1.55	.308	5.60	135	5.61	134	9.77	-12.6
11	Brandon Pfaadt B. Pfaadt	51	2025	AZ	16	8	5	.615	16	5.49	65	0	0	0	80.1	92	49	16	20	9	0	1	355	2	7.28	2.24	3.25	1.79	18.3	5.6	1.39	.310	5.71	133	5.12	131	10.31	-11.3
12	Jeffrey Springs J. Springs	50	2025	ATH	16	6	5	.545	14	4.24	72	0	0	0	87.0	75	41	13	32	1	0	0	369	0	7.45	3.31	2.25	1.34	19.5	8.7	1.23	.247	5.17	106	4.49	111	7.76	-4.2
13	JP Sears	49	2025	ATH	16	5	7	.417	16	5.44	63	0	0	0	81.0	89	49	18	19	5	0	0	351	1	7.00	2.11	3.32	2.00	17.9	5.4	1.33	.289	5.44	137	5.29	130	9.89	-11.1
14	Chris Paddack C. Paddack	48	2025	MIN	16	3	6	.333	16	4.64	60	0	0	0	85.1	81	44	11	24	2	0	0	359	2	6.33	2.53	2.50	1.16	16.7	6.7	1.23	.267	5.06	116	4.25	105	8.54	-1.8
15	Dean Kremer D. Kremer	48	2025	BAL	16	6	7	.462	15	4.60	72	0	0	0	90.0	97	46	12	24	1	0	0	384	5	7.20	2.40	3.00	1.20	18.8	6.3	1.34	.309	4.80	118	4.03	101	9.70	-0.6
16	Bailey Ober B. Ober	48	2025	MIN	16	4	5	.444	16	4.90	69	1	0	0	86.1	97	47	17	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
17	Mitchell Parker M. Parker	48	2025	WSH	16	5	8	.385	16	4.59	59	0	0	0	86.1	81	44	11	33	3	0	0	370	2	6.15	3.44	1.79	1.15	15.9	8.9	1.32	.265	5.00	113	4.61	113	8.44	-5.1
18	Kyle Hendricks K. Hendricks	47	2025	LAA	15	5	6	.455	15	4.83	55	0	0	0	82.0	85	44	14	23	4	0	3	351	0	6.04	2.52	2.39	1.54	15.7	6.6	1.32	.278	5.16	119	4.93	118	9.33	-6.5
19	Charlie Morton C. Morton	47	2025	BAL	18	4	7	.364	12	5.63	77	0	0	0	72.0	79	45	10	34	6	1	0	330	1	9.63	4.25	2.26	1.25	23.3	10.3	1.57	.340	5.88	144	4.40	111	9.88	-3.5
20	Eduardo Rodriguez E. Rodriguez	47	2025	AZ	13	3	4	.429	13	5.40	74	0	0	0	66.2	81	40	11	24	0	0	1	304	2	9.99	3.24	3.08	1.49	24.3	7.9	1.58	.359	6.35	131	4.07	104	10.94	-1.4
21	Tyler Anderson T. Anderson	46	2025	LAA	16	2	5	.286	16	4.41	70	0	0	0	85.2	84	42	15	33	3	0	3	375	5	7.35	3.47	2.12	1.58	18.7	8.8	1.37	.272	4.83	109	4.97	119	8.82	-7.2
22	Walker Buehler W. Buehler	46	2025	BOS	13	5	5	.500	13	6.29	56	0	0	0	63.0	70	44	13	29	8	0	0	289	0	8.00	4.14	1.93	1.86	19.4	10.0	1.57	.311	6.57	149	5.73	140	10.00	-11.3
23	Jack Flaherty J. Flaherty	46	2025	DET	16	5	9	.357	16	4.80	100	0	0	0	84.1	69	45	16	35	3	0	0	353	1	10.67	3.74	2.86	1.71	28.3	9.9	1.23	.266	4.91	122	4.51	112	7.36	-4.7
24	Mitch Keller M. Keller	46	2025	PIT	16	1	10	.091	16	4.02	73	0	0	0	94.0	91	42	6	24	4	0	0	395	2	6.99	2.30	3.04	0.57	18.5	6.1	1.22	.295	4.40	96	3.24	80	8.71	8.2
25	Michael Lorenzen M. Lorenzen	46	2025	KCR	15	4	7	.364	15	4.81	69	0	0	0	82.1	85	44	14	28	2	0	0	357	10	7.54	3.06	2.46	1.53	19.3	7.8	1.37	.291	5.03	115	4.69	116	9.29	-5.8