Between the 2020 and 2029 seasons, Matt Harvey had the worst ERA, with an ERA of 6.72.

Interpreted as:

worst era with a minimum of 0.5 IP per team game by a pitcher in the 2020s

	NAME	ERA	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	Matt Harvey M. Harvey	6.72	35	6	17	.261	32	105	0	0	0	139.1	187	104	111	25	42	5	1	1	647	3	6.78	2.71	2.50	1.61	16.2	6.5	1.64	.345	7.17	152	5.00	111	12.08	-7.1
2	Jake Arrieta J. Arrieta	6.67	33	9	18	.333	33	115	0	0	0	143.0	182	106	116	30	60	7	0	3	659	7	7.24	3.78	1.92	1.89	17.5	9.1	1.69	.340	7.30	159	5.69	133	11.45	-22.3
3	Chase Dollander C. Dollander	6.28	8	2	5	.286	8	38	0	0	0	38.2	37	27	30	10	18	2	0	0	172	1	8.84	4.19	2.11	2.33	22.1	10.5	1.42	.260	6.98	136	6.01	144	8.61	-7.5
4	Mike Foltynewicz M. Foltynewicz	5.69	29	2	13	.133	25	100	0	0	0	142.1	143	90	92	38	40	9	0	0	602	2	6.32	2.53	2.50	2.40	16.6	6.6	1.29	.253	5.82	129	6.26	142	9.04	-28.5
5	Rick Porcello R. Porcello	5.64	12	1	7	.125	12	54	0	0	0	59.0	74	37	41	5	15	2	0	0	261	1	8.24	2.29	3.60	0.76	20.7	5.7	1.51	.373	6.25	136	3.32	77	11.29	6.6
6	Chad Kuhl C. Kuhl	5.52	113	13	27	.325	56	314	1	1	2	355.1	366	218	238	59	181	25	14	4	1,590	25	7.95	4.58	1.73	1.49	19.7	11.4	1.54	.304	6.03	125	5.28	124	9.27	-38.8
7	Patrick Corbin P. Corbin	5.51	146	36	73	.330	146	632	1	0	0	792.2	951	485	515	141	254	18	0	5	3,512	14	7.18	2.88	2.49	1.60	18.0	7.2	1.52	.328	5.85	132	4.91	116	10.80	-58.8
8	Mike Minor M. Minor	5.46	59	13	30	.302	58	287	1	1	0	313.1	326	190	200	61	101	13	0	4	1,363	6	8.24	2.90	2.84	1.75	21.1	7.4	1.36	.294	5.74	124	4.94	116	9.36	-22.3
9	Jordan Lyles J. Lyles	5.41	112	29	47	.382	102	449	4	0	0	599.1	635	360	377	115	178	23	4	0	2,576	27	6.74	2.67	2.52	1.73	17.4	6.9	1.36	.287	5.66	126	5.18	122	9.54	-63
10	Anibal Sanchez A. Sanchez	5.30	25	8	11	.421	25	91	0	0	0	122.1	125	72	74	24	51	7	0	4	537	2	6.69	3.75	1.78	1.77	16.9	9.5	1.44	.277	5.44	124	5.62	133	9.20	-18.4
11	Jesse Scholtens J. Scholtens	5.29	26	1	9	.100	11	58	0	0	1	85.0	100	50	54	15	30	2	8	1	377	1	6.14	3.18	1.93	1.59	15.4	8.0	1.53	.313	5.72	123	5.31	120	10.59	-8.2
12	Ken Waldichuk K. Waldichuk	5.28	42	6	10	.375	29	165	0	0	1	175.2	181	103	112	29	81	13	2	1	785	8	8.45	4.15	2.04	1.49	21.0	10.3	1.49	.306	5.74	131	5.10	124	9.27	-20.5
13	Madison Bumgarner M. Bumgarner	5.23	69	15	32	.319	69	276	1	1	0	363.1	385	211	230	66	116	27	0	4	1,591	4	6.84	2.87	2.38	1.63	17.3	7.3	1.38	.288	5.70	125	5.17	128	9.54	-47.3
14	J.A. Happ	5.22	39	12	10	.545	39	164	0	0	0	201.2	214	117	119	38	63	4	0	0	867	4	7.32	2.81	2.60	1.70	18.9	7.3	1.37	.294	5.31	123	4.99	117	9.55	-16.2
15	José Ureña J. Ureña	5.13	101	12	34	.261	61	250	0	0	2	388.0	423	221	245	60	163	12	14	2	1,720	12	5.80	3.78	1.53	1.39	14.5	9.5	1.51	.294	5.68	118	5.23	123	9.81	-42.2
16	Cade Povich C. Povich	5.07	25	4	12	.250	25	113	0	0	0	126.0	130	71	77	20	51	3	0	2	554	4	8.07	3.64	2.22	1.43	20.4	9.2	1.44	.300	5.50	130	4.68	117	9.29	-10
17	Reid Detmers R. Detmers	5.03	92	17	29	.370	75	439	1	1	0	406.0	403	227	238	57	165	25	2	5	1,770	14	9.73	3.66	2.66	1.26	24.8	9.3	1.40	.319	5.28	121	4.24	100	8.93	-0.1
18	Carlos Carrasco C. Carrasco	5.03	102	27	36	.429	100	464	0	0	0	499.1	541	279	292	81	167	21	2	2	2,168	20	8.36	3.01	2.78	1.46	21.4	7.7	1.42	.321	5.26	125	4.54	109	9.75	-22
19	Zach Davies Z. Davies	5.00	89	17	26	.395	89	351	0	0	0	434.0	437	241	258	65	185	9	0	2	1,891	3	7.28	3.84	1.90	1.35	18.6	9.8	1.43	.290	5.35	119	4.84	117	9.06	-34.5
20	JT Brubaker	4.99	63	9	28	.243	61	324	0	0	0	315.2	328	175	187	51	109	21	0	1	1,389	13	9.24	3.11	2.97	1.45	23.3	7.8	1.38	.313	5.33	119	4.42	106	9.35	-9.2
21	Alec Marsh A. Marsh	4.96	43	12	18	.400	33	208	0	0	0	203.1	200	112	120	35	78	20	2	1	890	4	9.21	3.45	2.67	1.55	23.4	8.8	1.37	.301	5.31	115	4.83	116	8.85	-15.2
22	Luke Weaver L. Weaver	4.95	165	15	26	.366	51	390	0	0	12	385.2	390	212	222	62	124	13	41	4	1,669	6	9.10	2.89	3.15	1.45	23.4	7.4	1.33	.304	5.18	114	4.31	100	9.10	-0.5
23	Austin Gomber A. Gomber	4.92	127	29	38	.433	101	438	0	0	0	573.0	600	313	327	97	171	11	4	4	2,435	14	6.88	2.69	2.56	1.52	18.0	7.0	1.35	.293	5.14	103	4.80	110	9.42	-24.9
24	Dylan Bundy D. Bundy	4.89	63	16	20	.444	59	250	1	0	0	296.1	291	161	170	49	79	13	1	1	1,259	6	7.59	2.40	3.16	1.49	19.9	6.3	1.25	.279	5.16	118	4.53	109	8.84	-11.5
25	Jon Lester J. Lester	4.85	40	10	9	.526	40	133	0	0	0	202.1	223	109	119	36	72	6	0	5	892	2	5.92	3.20	1.85	1.60	14.9	8.1	1.46	.290	5.29	115	5.32	125	9.92	-23.7