Sandy Alcantara and Germán Márquez are tied for giving up the most earned runs this season, with 42 earned runs.

Interpreted as:

worst er by a player 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	Sandy Alcantara S. Alcantara	42	2025	MIA	10	2	7	.222	10	8.04	40	0	0	0	47.0	49	43	8	25	2	0	0	216	4	7.66	4.79	1.60	1.53	18.5	11.6	1.57	.291	8.23	194	5.29	134	9.38	-7
2	Germán Márquez G. Márquez	42	2025	COL	11	1	7	.125	11	7.13	32	0	0	0	53.0	68	47	4	19	4	0	0	245	4	5.43	3.23	1.68	0.68	13.1	7.8	1.64	.344	7.98	156	4.13	100	11.55	0.2
3	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	193	6.08	149	11.75	-9.6
4	Antonio Senzatela A. Senzatela	39	2025	COL	11	1	9	.100	11	6.50	29	0	0	0	54.0	90	45	9	15	1	0	0	259	2	4.83	2.50	1.93	1.50	11.2	5.8	1.94	.395	7.50	142	5.04	122	15.00	-5
5	Charlie Morton C. Morton	37	2025	BAL	13	1	7	.125	7	7.09	45	0	0	0	47.0	52	38	10	26	3	1	0	219	0	8.62	4.98	1.73	1.91	20.5	11.9	1.66	.311	7.28	184	5.76	145	9.96	-9.6
6	Kyle Freeland K. Freeland	36	2025	COL	11	0	7	.000	11	5.86	44	0	0	0	55.1	80	46	5	13	1	0	1	256	1	7.16	2.11	3.38	0.81	17.2	5.1	1.68	.389	7.48	128	3.40	82	13.01	4.5
7	Zac Gallen Z. Gallen	36	2025	AZ	11	3	6	.333	11	5.25	63	0	0	0	61.2	55	36	10	29	2	0	1	267	1	9.19	4.23	2.17	1.46	23.6	10.9	1.36	.276	5.25	128	4.63	121	8.03	-5.7
8	Ben Brown B. Brown	36	2025	CHC	11	3	3	.500	10	6.39	62	0	0	0	50.2	63	37	6	18	3	0	0	234	1	11.01	3.20	3.44	1.07	26.5	7.7	1.60	.393	6.57	162	3.39	88	11.19	2.7
9	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	172	4.27	111	11.69	-2.3
10	Trevor Williams T. Williams	35	2025	WSH	10	2	5	.286	10	6.39	41	0	0	0	49.1	62	36	7	15	2	0	0	224	1	7.48	2.74	2.73	1.28	18.3	6.7	1.56	.346	6.57	159	4.27	107	11.31	-1.5
11	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	152	4.99	124	10.69	-5.2
12	Jordan Hicks J. Hicks	34	2025	SFG	12	1	5	.167	9	6.33	42	0	0	0	48.1	55	35	3	17	4	2	0	213	4	7.82	3.17	2.47	0.56	19.7	8.0	1.49	.354	6.52	161	3.43	90	10.24	1.9
13	Dean Kremer D. Kremer	34	2025	BAL	11	4	5	.444	11	5.02	44	0	0	0	61.0	69	36	10	16	1	0	0	265	4	6.49	2.36	2.75	1.48	16.6	6.0	1.39	.304	5.31	130	4.58	116	10.18	-4.3
14	Jack Kochanowicz J. Kochanowicz	34	2025	LAA	11	3	6	.333	11	5.07	40	0	0	0	60.1	63	35	9	29	4	0	2	264	2	5.97	4.33	1.38	1.34	15.2	11.0	1.52	.297	5.22	126	5.31	128	9.40	-7.4
15	JP Sears	33	2025	ATH	11	4	5	.444	11	5.18	43	0	0	0	57.1	62	33	13	11	3	0	0	246	0	6.75	1.73	3.91	2.04	17.5	4.5	1.27	.278	5.18	132	5.24	130	9.73	-7.6
16	Kyle Hendricks K. Hendricks	31	2025	LAA	10	2	6	.250	10	5.23	33	0	0	0	53.1	51	31	9	16	3	0	0	223	0	5.57	2.70	2.06	1.52	14.8	7.2	1.26	.259	5.23	130	5.08	122	8.61	-5.2
17	Bowden Francis B. Francis	31	2025	TOR	11	2	6	.250	11	5.04	46	0	0	0	55.1	58	33	15	17	3	0	0	237	3	7.48	2.77	2.71	2.44	19.4	7.2	1.36	.276	5.37	129	6.00	148	9.43	-12.1
18	Taj Bradley T. Bradley	31	2025	TBR	11	4	4	.500	11	4.38	54	0	0	0	63.2	55	32	9	25	4	0	0	264	0	7.63	3.53	2.16	1.27	20.5	9.5	1.26	.267	4.52	116	4.57	116	7.77	-4.8
19	Mitchell Parker M. Parker	31	2025	WSH	11	4	3	.571	11	4.65	40	0	0	0	60.0	54	33	5	26	3	0	0	259	2	6.00	3.90	1.54	0.75	15.4	10.0	1.33	.265	4.95	116	4.26	107	8.10	-1.7
20	José Berríos J. Berríos	30	2025	TOR	11	1	2	.333	11	4.22	56	0	0	0	64.0	61	30	10	26	3	0	1	272	1	7.88	3.66	2.15	1.41	20.6	9.6	1.36	.288	4.22	108	4.70	116	8.58	-4.7
21	Dylan Cease D. Cease	30	2025	SDP	11	1	3	.250	11	4.58	72	0	0	0	59.0	54	32	7	20	1	0	1	247	2	10.98	3.05	3.60	1.07	29.1	8.1	1.25	.320	4.88	117	3.23	83	8.24	4.5
22	Michael Lorenzen M. Lorenzen	30	2025	KCR	11	3	6	.333	11	4.33	52	0	0	0	62.1	68	32	10	19	2	0	0	272	8	7.51	2.74	2.74	1.44	19.1	7.0	1.40	.307	4.62	105	4.49	111	9.82	-3.1
23	Cal Quantrill C. Quantrill	30	2025	MIA	10	3	4	.429	10	6.09	31	0	0	0	44.1	51	30	6	15	1	0	0	189	1	6.29	3.05	2.07	1.22	16.4	7.9	1.49	.331	6.09	147	4.50	114	10.35	-2.7
24	Luis Severino L. Severino	30	2025	ATH	11	1	4	.200	11	4.11	50	0	0	0	65.2	63	31	4	20	3	0	1	280	1	6.85	2.74	2.50	0.55	17.9	7.1	1.26	.291	4.25	105	3.38	84	8.63	4.9
25	Brady Singer B. Singer	30	2025	CIN	11	6	3	.667	11	4.60	49	0	0	0	58.2	55	33	7	23	1	0	0	250	0	7.52	3.53	2.13	1.07	19.6	9.2	1.33	.282	5.06	107	4.17	100	8.44	0.3