Eduardo Rodriguez has the highest ERA this season, with an ERA of 7.05.

Interpreted as:

worst rotation era with a minimum of 1 IP per team game by a player this regular season

	NAME	ERA	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	IP	H	ER	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	Eduardo Rodriguez E. Rodriguez	7.05	2025	AZ	9	1	3	.250	9	52	0	0	0	44.2	58	35	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	169	4.30	110	11.69	-2
2	Jordan Hicks J. Hicks	6.55	2025	SFG	9	1	5	.167	9	41	0	0	0	45.1	53	33	34	3	16	4	0	0	202	4	8.14	3.18	2.56	0.60	20.3	7.9	1.52	.362	6.75	163	3.47	89	10.52	2.1
3	Antonio Senzatela A. Senzatela	6.39	2025	COL	9	1	7	.125	9	22	0	0	0	43.2	74	31	37	9	13	1	0	0	210	1	4.53	2.68	1.69	1.85	10.5	6.2	1.99	.394	7.63	137	5.72	135	15.25	-6.8
4	Aaron Nola A. Nola	6.16	2025	PHI	9	1	7	.125	9	52	0	0	0	49.2	59	34	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	149	5.02	122	10.69	-4.9
5	Kyle Freeland K. Freeland	6.15	2025	COL	9	0	6	.000	9	35	0	0	0	45.1	64	31	37	4	8	1	0	0	207	1	6.95	1.59	4.38	0.79	16.9	3.9	1.59	.377	7.35	132	3.29	78	12.71	4.6
6	Trevor Williams T. Williams	5.91	2025	WSH	9	2	5	.286	9	38	0	0	0	45.2	58	30	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	144	3.77	92	11.43	1.6
7	Bowden Francis B. Francis	5.63	2025	TOR	9	2	6	.250	9	36	0	0	0	46.1	52	29	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	143	6.50	159	10.10	-12.4
8	Dean Kremer D. Kremer	5.36	2025	BAL	9	3	5	.375	9	34	0	0	0	50.1	53	30	32	10	13	1	0	0	216	4	6.08	2.32	2.62	1.79	15.7	6.0	1.31	.272	5.72	137	5.16	129	9.48	-6.6
9	Jack Kochanowicz J. Kochanowicz	5.23	2025	LAA	8	2	5	.286	8	24	0	0	0	43.0	46	25	26	7	18	3	0	2	186	1	5.02	3.77	1.33	1.47	12.9	9.7	1.49	.291	5.44	129	5.56	132	9.63	-6.2
10	Brady Singer B. Singer	5.01	2025	CIN	9	5	2	.714	9	43	0	0	0	46.2	43	26	29	7	18	1	0	0	198	0	8.29	3.47	2.39	1.35	21.7	9.1	1.31	.279	5.59	114	4.42	103	8.29	-0.6
11	Taj Bradley T. Bradley	4.80	2025	TBR	9	3	3	.500	9	41	0	0	0	50.2	46	27	27	7	22	2	0	0	213	0	7.28	3.91	1.86	1.24	19.2	10.3	1.34	.277	4.80	125	4.69	118	8.17	-4.2
12	Luis Severino L. Severino	4.70	2025	ATH	9	1	4	.200	9	40	0	0	0	53.2	52	28	29	4	19	2	0	1	232	1	6.71	3.19	2.11	0.67	17.2	8.2	1.32	.287	4.86	118	3.74	91	8.72	2.1
13	Dylan Cease D. Cease	4.60	2025	SDP	9	1	2	.333	9	58	0	0	0	47.0	45	24	26	5	18	1	0	1	203	1	11.11	3.45	3.22	0.96	28.6	8.9	1.34	.331	4.98	116	3.22	81	8.62	4.1
14	Kevin Gausman K. Gausman	4.59	2025	TOR	9	3	4	.429	9	46	0	0	0	51.0	42	26	27	7	12	0	0	1	201	0	8.12	2.12	3.83	1.24	22.9	6.0	1.06	.257	4.76	116	3.78	92	7.41	1.8
15	Zac Gallen Z. Gallen	4.59	2025	AZ	9	3	5	.375	9	54	0	0	0	51.0	44	26	26	6	23	1	0	0	218	1	9.53	4.06	2.35	1.06	24.8	10.6	1.31	.284	4.59	110	3.91	100	7.76	-0.1
16	Jameson Taillon J. Taillon	4.53	2025	CHC	9	2	3	.400	9	42	0	0	0	49.2	46	25	26	13	9	0	0	0	203	0	7.61	1.63	4.67	2.36	20.7	4.4	1.11	.237	4.71	113	5.35	135	8.34	-7.9
17	Sonny Gray S. Gray	4.50	2025	STL	9	4	1	.800	9	51	0	0	0	50.0	47	25	27	9	12	2	0	0	206	1	9.18	2.16	4.25	1.62	24.8	5.8	1.18	.288	4.86	111	4.23	107	8.46	-1.6
18	Max Meyer M. Meyer	4.47	2025	MIA	9	3	4	.429	9	59	0	0	0	50.1	51	25	27	8	16	2	0	0	216	0	10.55	2.86	3.69	1.43	27.3	7.4	1.33	.328	4.83	106	3.89	96	9.12	0.8
19	Jack Flaherty J. Flaherty	4.44	2025	DET	9	2	5	.286	9	56	0	0	0	46.2	42	23	24	10	15	1	0	0	194	0	10.80	2.89	3.73	1.93	28.9	7.7	1.22	.286	4.63	112	4.50	111	8.10	-2.4
20	José Berríos J. Berríos	4.33	2025	TOR	9	1	1	.500	9	49	0	0	0	52.0	50	25	25	9	24	2	0	1	223	1	8.48	4.15	2.04	1.56	22.0	10.8	1.42	.295	4.33	110	4.96	121	8.65	-5
21	Mitchell Parker M. Parker	4.32	2025	WSH	9	3	3	.500	9	32	0	0	0	50.0	41	24	26	1	24	3	0	0	216	2	5.76	4.32	1.33	0.18	14.8	11.1	1.30	.256	4.68	105	3.69	91	7.38	2.1
22	Justin Verlander J. Verlander	4.31	2025	SFG	9	0	3	.000	9	40	0	0	0	48.0	49	23	25	8	16	1	0	0	205	0	7.50	3.00	2.50	1.50	19.5	7.8	1.35	.293	4.69	107	4.65	120	9.19	-4.4
23	Zack Littell Z. Littell	4.31	2025	TBR	9	3	5	.375	9	32	0	0	0	54.1	51	26	26	13	10	0	0	1	216	0	5.30	1.66	3.20	2.15	14.8	4.6	1.12	.236	4.31	113	5.58	140	8.45	-10.1
24	Jeffrey Springs J. Springs	4.27	2025	ATH	9	5	3	.625	9	36	0	0	0	46.1	43	22	28	6	21	0	0	0	203	0	6.99	4.08	1.71	1.17	17.7	10.3	1.38	.264	5.44	107	4.58	112	8.35	-2.5
25	Mitch Keller M. Keller	4.15	2025	PIT	9	1	5	.167	9	43	0	0	0	52.0	53	24	26	4	16	4	0	0	226	1	7.44	2.77	2.69	0.69	19.0	7.1	1.33	.308	4.50	98	3.59	89	9.17	2.6