Jack Kochanowicz has the worst ERA this season, with an ERA of 5.53.

Interpreted as:

worst era with a minimum of 1 IP per team game pitcher 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	Jack Kochanowicz J. Kochanowicz	5.53	2025	LAA	14	3	8	.273	14	50	0	0	0	71.2	81	44	45	13	33	5	0	2	317	3	6.28	4.14	1.52	1.63	15.8	10.4	1.59	.315	5.65	136	5.62	134	10.17	-11
2	Kyle Hendricks K. Hendricks	5.20	2025	LAA	13	4	6	.400	13	44	0	0	0	71.0	73	41	42	12	21	4	0	3	303	0	5.58	2.66	2.10	1.52	14.5	6.9	1.32	.275	5.32	128	5.08	122	9.25	-6.8
3	Zac Gallen Z. Gallen	5.19	2025	AZ	15	4	8	.333	15	81	0	0	0	86.2	77	50	53	15	40	2	0	1	373	1	8.41	4.15	2.03	1.56	21.7	10.7	1.35	.264	5.50	127	4.90	127	8.00	-10.5
4	Kyle Freeland K. Freeland	5.13	2025	COL	14	1	8	.111	14	57	0	0	0	73.2	98	42	54	8	15	2	0	1	328	1	6.96	1.83	3.80	0.98	17.4	4.6	1.53	.366	6.60	112	3.62	87	11.97	4.4
5	Dean Kremer D. Kremer	4.99	2025	BAL	14	5	7	.417	13	61	0	0	0	79.1	88	44	46	12	21	1	0	0	342	5	6.92	2.38	2.90	1.36	17.8	6.1	1.37	.308	5.22	128	4.32	109	9.98	-3.2
6	Michael Lorenzen M. Lorenzen	4.91	2025	KCR	14	4	7	.364	14	65	0	0	0	77.0	80	42	44	14	25	2	0	0	334	9	7.60	2.92	2.60	1.64	19.5	7.5	1.36	.289	5.14	118	4.79	118	9.35	-6.3
7	Mitchell Parker M. Parker	4.84	2025	WSH	14	4	7	.364	14	50	0	0	0	74.1	69	40	44	8	31	3	0	0	321	2	6.05	3.75	1.61	0.97	15.6	9.7	1.35	.266	5.33	121	4.49	112	8.35	-3.9
8	Andre Pallante A. Pallante	4.83	2025	STL	14	4	3	.571	14	54	0	0	0	76.1	79	41	43	11	26	1	0	0	331	5	6.37	3.07	2.08	1.30	16.3	7.9	1.38	.285	5.07	122	4.58	118	9.31	-6.1
9	Luis L. Ortiz L. L. Ortiz	4.64	2025	CLE	14	3	8	.273	14	81	0	0	0	75.2	72	39	40	10	39	1	0	0	331	0	9.63	4.64	2.08	1.19	24.5	11.8	1.47	.310	4.76	118	4.23	105	8.56	-1.8
10	Shane Baz S. Baz	4.54	2025	TBR	14	6	3	.667	14	71	0	0	0	77.1	72	39	39	13	30	5	0	0	328	0	8.26	3.49	2.37	1.51	21.6	9.1	1.32	.282	4.54	119	4.77	121	8.38	-7.5
11	Jeffrey Springs J. Springs	4.52	2025	ATH	15	5	5	.500	13	66	0	0	0	79.2	72	40	49	12	31	1	0	0	343	0	7.46	3.50	2.13	1.36	19.2	9.0	1.29	.258	5.54	114	4.57	113	8.13	-4.5
12	Luis Severino L. Severino	4.47	2025	ATH	15	2	6	.250	15	61	0	0	0	90.2	89	45	48	6	29	5	0	1	391	1	6.06	2.88	2.10	0.60	15.6	7.4	1.30	.286	4.76	112	3.70	91	8.83	3.6
13	Dustin May D. May	4.46	2025	LAD	13	4	4	.500	13	67	0	0	0	72.2	67	36	40	8	30	7	0	2	315	1	8.30	3.72	2.23	0.99	21.3	9.5	1.33	.291	4.95	112	4.18	103	8.30	-1
14	Tyler Anderson T. Anderson	4.44	2025	LAA	14	2	4	.333	14	61	0	0	0	75.0	74	37	41	13	29	3	0	3	332	5	7.32	3.48	2.10	1.56	18.4	8.7	1.37	.270	4.92	109	4.97	119	8.88	-6.3
15	Bailey Ober B. Ober	4.40	2025	MIN	14	4	3	.571	14	57	0	0	0	73.2	81	36	37	13	21	3	0	0	323	1	6.96	2.57	2.71	1.59	17.6	6.5	1.38	.297	4.52	111	4.79	118	9.90	-6
16	Miles Mikolas M. Mikolas	4.35	2025	STL	14	4	4	.500	14	45	0	0	0	72.1	76	35	36	6	18	2	0	0	308	1	5.60	2.24	2.50	0.75	14.6	5.8	1.30	.295	4.48	110	3.73	96	9.46	1.3
17	Taj Bradley T. Bradley	4.35	2025	TBR	14	4	5	.444	14	71	0	0	0	78.2	68	38	45	10	33	4	0	0	331	0	8.12	3.78	2.15	1.14	21.5	10.0	1.28	.272	5.15	114	4.32	110	7.78	-3.6
18	Brady Singer B. Singer	4.34	2025	CIN	14	7	4	.636	14	60	0	0	0	74.2	68	36	39	9	32	2	0	0	317	0	7.23	3.86	1.88	1.08	18.9	10.1	1.34	.276	4.70	101	4.39	104	8.20	-1.3
19	Chris Paddack C. Paddack	4.30	2025	MIN	14	2	6	.250	14	53	0	0	0	75.1	70	36	39	10	23	1	0	0	315	2	6.33	2.75	2.30	1.19	16.8	7.3	1.23	.263	4.66	108	4.34	107	8.36	-2.4
20	Dylan Cease D. Cease	4.28	2025	SDP	14	2	5	.286	14	96	0	0	0	75.2	69	36	38	8	29	1	0	1	321	2	11.42	3.45	3.31	0.95	29.9	9.0	1.30	.326	4.52	110	3.09	79	8.21	7.1
21	Jesús Luzardo J. Luzardo	4.23	2025	PHI	14	6	2	.750	14	93	0	0	0	78.2	86	37	40	6	24	1	0	0	337	1	10.64	2.75	3.88	0.69	27.6	7.1	1.40	.376	4.58	105	2.64	65	9.84	12.1
22	Jake Irvin J. Irvin	4.23	2025	WSH	15	5	3	.625	15	59	0	0	0	89.1	84	42	42	14	26	2	0	0	375	1	5.94	2.62	2.27	1.41	15.7	6.9	1.23	.255	4.23	106	4.72	118	8.46	-7
23	Matthew Liberatore M. Liberatore	4.17	2025	STL	13	3	6	.333	13	62	0	0	0	73.1	76	34	36	7	11	2	0	0	306	2	7.61	1.35	5.64	0.86	20.3	3.6	1.19	.308	4.42	105	3.14	81	9.33	6.1
24	Kevin Gausman K. Gausman	4.08	2025	TOR	14	5	5	.500	14	80	0	0	0	81.2	66	37	38	10	21	1	0	1	324	0	8.82	2.31	3.81	1.10	24.7	6.5	1.07	.264	4.19	104	3.50	86	7.27	5
25	Mitch Keller M. Keller	4.08	2025	PIT	15	1	9	.100	15	68	0	0	0	88.1	88	40	43	6	22	4	0	0	373	2	6.93	2.24	3.09	0.61	18.2	5.9	1.25	.300	4.38	99	3.29	83	8.97	6.6