lowest single season era since 2000 with minimum of 20 gs

Since 2000, Zack Greinke has the best ERA with 20+ starts in a season, with an ERA of 1.66 in 2015.

Interpreted as:

lowest single season era by a player since 2000 with minimum of 20 gs

	NAME	ERA	GS	SEASON	TM	G	W	L	W%	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	Zack Greinke Z. Greinke	1.66	32	2015	LAD	32	19	3	.864	200	1	0	0	222.2	148	41	43	14	40	5	0	1	843	7	8.08	1.62	5.00	0.57	23.7	4.7	0.84	.229	1.74	44	2.75	73	5.98	26.2
2	Clayton Kershaw C. Kershaw	1.69	21	2016	LAD	21	12	4	.750	172	3	3	0	149.0	97	28	31	8	11	2	0	1	544	5	10.39	0.66	15.64	0.48	31.6	2.0	0.72	.254	1.87	42	1.79	44	5.86	37.9
3	Jacob deGrom J. deGrom	1.70	32	2018	NYM	32	10	9	.526	269	1	0	0	217.0	152	41	48	10	46	5	0	3	835	2	11.16	1.91	5.85	0.41	32.2	5.5	0.91	.281	1.99	44	1.98	50	6.30	49
4	Pedro Martinez P. Martinez	1.74	29	2000	BOS	29	18	6	.750	284	7	4	0	217.0	128	42	44	17	32	14	0	0	817	1	11.78	1.33	8.88	0.71	34.8	3.9	0.74	.236	1.82	35	2.16	47	5.31	61.5
5	Justin Verlander J. Verlander	1.75	28	2022	HOU	28	18	4	.818	185	0	0	0	175.0	116	34	43	12	29	6	0	0	666	3	9.51	1.49	6.38	0.62	27.8	4.4	0.83	.240	2.21	46	2.48	64	5.97	27.7
6	Jake Arrieta J. Arrieta	1.77	33	2015	CHC	33	22	6	.786	236	4	3	0	229.0	150	45	52	10	48	6	0	2	870	6	9.28	1.89	4.92	0.39	27.1	5.5	0.86	.246	2.04	45	2.34	60	5.90	39
7	Clayton Kershaw C. Kershaw	1.77	27	2014	LAD	27	21	3	.875	239	6	2	0	198.1	139	39	42	9	31	2	0	0	749	7	10.85	1.41	7.71	0.41	31.9	4.1	0.86	.278	1.91	51	1.81	50	6.31	40.5
8	Clayton Kershaw C. Kershaw	1.83	33	2013	LAD	33	16	9	.640	232	3	2	0	236.0	164	48	55	11	52	3	0	2	908	12	8.85	1.98	4.46	0.42	25.6	5.7	0.92	.251	2.10	51	2.38	64	6.25	35.4
9	Roger Clemens R. Clemens	1.87	32	2005	HOU	32	13	8	.619	185	1	0	0	211.1	151	44	51	11	62	3	0	5	838	3	7.88	2.64	2.98	0.47	22.1	7.4	1.01	.243	2.17	44	2.86	67	6.43	33.4
10	Blake Snell B. Snell	1.89	31	2018	TBR	31	21	5	.808	221	0	0	0	180.2	112	38	41	16	64	1	0	2	700	13	11.01	3.19	3.45	0.80	31.6	9.1	0.97	.241	2.04	46	2.94	72	5.58	23.1
11	Paul Skenes P. Skenes	1.96	23	2024	PIT	23	11	3	.786	170	0	0	0	133.0	94	29	31	10	32	6	0	0	514	2	11.50	2.17	5.31	0.68	33.1	6.2	0.95	.284	2.10	47	2.44	60	6.36	23.9
12	Reynaldo López R. López	1.99	25	2024	ATL	26	8	5	.615	148	0	0	0	135.2	108	30	32	10	42	2	0	0	543	2	9.82	2.79	3.52	0.66	27.3	7.7	1.11	.287	2.12	48	2.91	73	7.16	16.3
13	Rich Harden R. Harden	2.07	25	2008	TOT	25	10	2	.833	181	0	0	0	148.0	96	34	38	11	61	3	0	2	595	3	11.01	3.71	2.97	0.67	30.4	10.3	1.06	.251	2.31	48	2.94	68	5.84	22.6
14	Chris Sale C. Sale	2.11	27	2018	BOS	27	12	4	.750	237	0	0	0	158.0	102	37	39	11	34	14	0	0	617	4	13.50	1.94	6.97	0.63	38.4	5.5	0.86	.283	2.22	48	1.97	47	5.81	39.2
15	Rich Hill R. Hill	2.12	20	2016	TOT	20	12	5	.706	129	0	0	0	110.1	77	26	29	4	33	8	0	0	439	0	10.52	2.69	3.91	0.33	29.4	7.5	1.00	.275	2.37	52	2.39	58	6.28	21.6
16	Clayton Kershaw C. Kershaw	2.13	33	2015	LAD	33	16	7	.696	301	4	3	0	232.2	163	55	62	15	42	5	0	1	890	9	11.64	1.62	7.17	0.58	33.8	4.7	0.88	.281	2.40	57	1.98	52	6.31	47.7
17	Kyle Hendricks K. Hendricks	2.13	30	2016	CHC	31	16	8	.667	170	2	1	0	190.0	142	45	53	15	44	8	0	3	745	5	8.05	2.08	3.86	0.71	22.8	5.9	0.98	.250	2.51	51	3.20	78	6.73	19.6
18	Felix Hernandez F. Hernandez	2.14	34	2014	SEA	34	15	6	.714	248	0	0	0	236.0	170	56	68	16	46	5	0	1	912	18	9.46	1.75	5.39	0.61	27.2	5.0	0.92	.258	2.59	58	2.56	69	6.48	30.7
19	Tony Gonsolin T. Gonsolin	2.14	24	2022	LAD	24	16	1	.941	119	0	0	0	130.1	79	31	32	11	35	4	0	1	498	5	8.22	2.42	3.40	0.76	23.9	7.0	0.87	.207	2.21	55	3.27	81	5.46	10.8
20	Zack Greinke Z. Greinke	2.16	33	2009	KCR	33	16	8	.667	242	6	3	0	229.1	195	55	64	11	51	4	0	0	915	5	9.50	2.00	4.75	0.43	26.4	5.6	1.07	.303	2.51	48	2.32	53	7.65	52.5
21	Julio Urías J. Urías	2.16	31	2022	LAD	31	17	7	.708	166	0	0	0	175.0	127	42	51	23	41	5	0	0	689	0	8.54	2.11	4.05	1.18	24.1	6.0	0.96	.229	2.62	55	3.71	92	6.53	6.2
22	Chris Sale C. Sale	2.17	26	2014	CWS	26	12	4	.750	208	2	0	0	174.0	129	42	48	13	39	11	0	2	685	3	10.76	2.02	5.33	0.67	30.4	5.7	0.97	.280	2.48	56	2.57	66	6.67	25.1
23	Jose Fernandez J. Fernandez	2.19	28	2013	MIA	28	12	6	.667	187	0	0	0	172.2	111	42	47	10	58	5	0	5	681	3	9.75	3.02	3.22	0.52	27.5	8.5	0.98	.240	2.45	60	2.72	75	5.79	18.1
24	Dylan Cease D. Cease	2.20	32	2022	CWS	32	14	8	.636	227	1	1	0	184.0	126	45	55	16	78	3	0	2	747	7	11.10	3.82	2.91	0.78	30.4	10.4	1.11	.260	2.69	56	3.09	75	6.16	20.1
25	Trevor Bauer T. Bauer	2.21	27	2018	CLE	28	12	6	.667	221	0	0	1	175.1	134	43	51	9	57	9	1	2	717	12	11.34	2.93	3.88	0.46	30.8	7.9	1.09	.297	2.62	50	2.43	57	6.88	35