Tanner Houck and Germán Márquez are tied for giving up the most earned runs this season, with 39 earned runs.

Interpreted as:

most earned runs by a pitcher this regular season

	NAME	ER	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	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	Tanner Houck T. Houck	39	2025	BOS	9	0	3	.000	9	8.04	32	0	0	0	43.2	57	41	10	17	5	0	0	203	2	6.60	3.50	1.88	2.06	15.8	8.4	1.69	.338	8.45	191	6.10	148	11.75	-9.5
2	Germán Márquez G. Márquez	39	2025	COL	9	1	6	.143	9	8.78	21	0	0	0	40.0	57	43	4	16	4	0	0	193	4	4.72	3.60	1.31	0.90	10.9	8.3	1.83	.358	9.67	189	4.82	115	12.83	-2.5
3	Sandy Alcantara S. Alcantara	37	2025	MIA	9	2	6	.250	9	7.99	34	0	0	0	41.2	44	37	7	23	1	0	0	191	4	7.34	4.97	1.48	1.51	17.8	12.0	1.61	.294	7.99	190	5.35	134	9.50	-6.2
4	Charlie Morton C. Morton	35	2025	BAL	12	0	7	.000	6	7.68	40	0	0	0	41.0	48	36	9	24	2	1	0	195	0	8.78	5.27	1.67	1.98	20.5	12.3	1.76	.325	7.90	198	5.88	147	10.54	-8.8
5	Eduardo Rodriguez E. Rodriguez	35	2025	AZ	9	1	3	.250	9	7.05	52	0	0	0	44.2	58	41	8	18	0	0	0	211	2	10.48	3.63	2.89	1.61	24.6	8.5	1.70	.376	8.26	170	4.28	110	11.69	-2.1
6	Antonio Senzatela A. Senzatela	35	2025	COL	10	1	8	.111	10	6.34	25	0	0	0	49.2	84	41	9	14	1	0	0	239	1	4.53	2.54	1.79	1.63	10.5	5.9	1.97	.395	7.43	136	5.33	127	15.22	-5.8
7	Aaron Nola A. Nola	34	2025	PHI	9	1	7	.125	9	6.16	52	0	0	0	49.2	59	35	11	16	3	0	0	220	1	9.42	2.90	3.25	1.99	23.6	7.3	1.51	.348	6.34	150	5.01	123	10.69	-4.9
8	Jordan Hicks J. Hicks	34	2025	SFG	11	1	5	.167	9	6.46	41	0	0	0	47.1	55	35	3	17	4	1	0	210	4	7.80	3.23	2.41	0.57	19.5	8.1	1.52	.359	6.65	162	3.50	91	10.46	1.8
9	Dean Kremer D. Kremer	34	2025	BAL	10	3	5	.375	10	5.50	40	0	0	0	55.2	62	36	10	15	1	0	0	242	4	6.47	2.43	2.67	1.62	16.5	6.2	1.38	.295	5.82	141	4.83	121	10.02	-5.3
10	Kyle Freeland K. Freeland	32	2025	COL	10	0	6	.000	10	5.68	41	0	0	0	50.2	71	38	4	10	1	0	0	231	1	7.28	1.78	4.10	0.71	17.7	4.3	1.60	.383	6.75	122	3.13	75	12.61	5.8
11	Zac Gallen Z. Gallen	32	2025	AZ	10	3	5	.375	10	5.14	59	0	0	0	56.0	52	32	10	25	1	0	0	243	1	9.48	4.02	2.36	1.61	24.3	10.3	1.38	.284	5.14	124	4.68	121	8.36	-5.2
12	Trevor Williams T. Williams	30	2025	WSH	9	2	5	.286	9	5.91	38	0	0	0	45.2	58	31	5	12	2	0	0	206	1	7.49	2.36	3.17	0.99	18.4	5.8	1.53	.356	6.11	145	3.75	93	11.43	1.5
13	Cal Quantrill C. Quantrill	29	2025	MIA	9	3	4	.429	9	6.37	29	0	0	0	41.0	48	29	6	15	1	0	0	177	1	6.37	3.29	1.93	1.32	16.4	8.5	1.54	.333	6.37	152	4.73	118	10.54	-3.3
14	Bowden Francis B. Francis	29	2025	TOR	9	2	6	.250	9	5.63	36	0	0	0	46.1	52	31	14	13	3	0	0	201	3	6.99	2.53	2.77	2.72	17.9	6.5	1.40	.281	6.02	144	6.48	159	10.10	-12.4
15	Shane Baz S. Baz	29	2025	TBR	9	3	3	.500	9	5.33	48	0	0	0	49.0	50	29	9	19	3	0	0	210	0	8.82	3.49	2.53	1.65	22.9	9.0	1.41	.313	5.33	140	4.85	123	9.18	-5.1
16	Taj Bradley T. Bradley	29	2025	TBR	10	4	3	.571	10	4.61	48	0	0	0	56.2	50	29	8	24	3	0	0	236	0	7.62	3.81	2.00	1.27	20.3	10.2	1.31	.275	4.61	121	4.64	117	7.94	-4.5
17	Jack Kochanowicz J. Kochanowicz	29	2025	LAA	10	3	5	.375	10	4.86	35	0	0	0	53.2	57	31	9	27	3	0	2	236	2	5.87	4.53	1.30	1.51	14.8	11.4	1.57	.296	5.20	120	5.63	134	9.56	-8.2
18	Kyle Hendricks K. Hendricks	28	2025	LAA	9	2	5	.286	9	5.32	28	0	0	0	47.1	44	28	9	16	3	0	0	198	0	5.32	3.04	1.75	1.71	14.1	8.1	1.27	.246	5.32	132	5.57	132	8.37	-6.9
19	Zack Littell Z. Littell	28	2025	TBR	10	3	5	.375	10	4.25	38	0	0	0	59.1	58	28	14	10	1	0	1	239	1	5.76	1.52	3.80	2.12	15.9	4.2	1.15	.250	4.25	112	5.42	137	8.80	-10
20	Luis Severino L. Severino	28	2025	ATH	10	1	4	.200	10	4.22	45	0	0	0	59.2	56	29	4	20	2	0	1	255	1	6.79	3.02	2.25	0.60	17.6	7.8	1.27	.283	4.37	107	3.54	87	8.45	3.6
21	Brady Singer B. Singer	28	2025	CIN	10	5	3	.625	10	4.88	46	0	0	0	51.2	48	31	7	22	1	0	0	221	0	8.01	3.83	2.09	1.22	20.8	10.0	1.35	.283	5.40	112	4.39	103	8.36	-0.7
22	Ben Brown B. Brown	28	2025	CHC	10	3	3	.500	9	5.44	58	0	0	0	46.1	56	29	6	16	3	0	0	212	0	11.27	3.11	3.63	1.17	27.4	7.5	1.55	.388	5.63	136	3.48	89	10.88	2.3
23	Osvaldo Bido O. Bido	28	2025	ATH	9	2	4	.333	9	5.82	29	0	0	0	43.1	52	30	10	18	2	0	0	198	0	6.02	3.74	1.61	2.08	14.6	9.1	1.62	.302	6.23	147	6.12	150	10.80	-9.8
24	José Berríos J. Berríos	27	2025	TOR	10	1	1	.500	10	4.19	53	0	0	0	58.0	58	27	9	25	3	0	1	250	1	8.22	3.88	2.12	1.40	21.2	10.0	1.43	.306	4.19	107	4.71	115	9.00	-4.1
25	Dylan Cease D. Cease	27	2025	SDP	10	1	3	.250	10	4.50	64	0	0	0	54.0	48	29	7	19	1	0	1	227	1	10.67	3.17	3.37	1.17	28.2	8.4	1.24	.301	4.83	114	3.50	88	8.00	2.8