Between the 2000 and 2009 seasons, Pedro Martinez had the best ERA in a season, with an ERA of 1.74 in 2000.

Interpreted as:

smallest era with a minimum of 1 IP per team game by a player in one season in 2000's

	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	Pedro Martinez P. Martinez	1.74	2000	BOS	29	18	6	.750	29	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
2	Roger Clemens R. Clemens	1.87	2005	HOU	32	13	8	.619	32	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
3	Zack Greinke Z. Greinke	2.16	2009	KCR	33	16	8	.667	33	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
4	Pedro Martinez P. Martinez	2.22	2003	BOS	29	14	4	.778	29	206	3	0	0	186.2	147	46	52	7	47	9	0	0	749	5	9.93	2.27	4.38	0.34	27.5	6.3	1.04	.292	2.51	48	2.21	50	7.09	45.7
5	Chris Carpenter C. Carpenter	2.24	2009	STL	28	17	4	.810	28	144	3	1	0	192.2	156	48	49	7	38	7	0	1	750	1	6.73	1.78	3.79	0.33	19.2	5.1	1.01	.269	2.29	55	2.77	67	7.29	29.3
6	Pedro Martinez P. Martinez	2.26	2002	BOS	30	20	4	.833	30	239	2	0	0	199.1	144	50	62	13	40	15	0	1	787	3	10.79	1.81	5.98	0.59	30.4	5.1	0.92	.273	2.80	50	2.23	53	6.50	45.4
7	Jake Peavy J. Peavy	2.27	2004	SDP	27	15	6	.714	27	173	0	0	0	166.1	146	42	49	13	53	11	0	4	694	1	9.36	2.87	3.26	0.70	24.9	7.6	1.20	.300	2.65	57	3.13	74	7.90	20.8
8	Randy Johnson R. Johnson	2.32	2002	ARI	35	24	5	.828	35	334	8	4	0	260.0	197	67	78	26	71	13	0	1	1,035	3	11.56	2.46	4.70	0.90	32.3	6.9	1.03	.289	2.70	54	2.65	61	6.82	47
9	Jason Schmidt J. Schmidt	2.34	2003	SFG	29	17	5	.773	29	208	5	3	0	207.2	152	54	56	14	46	5	0	1	819	7	9.01	1.99	4.52	0.61	25.4	5.6	0.95	.253	2.43	56	2.63	63	6.59	36.3
10	Andy Pettitte A. Pettitte	2.39	2005	HOU	33	17	9	.654	33	171	0	0	0	222.1	188	59	66	17	41	3	0	0	875	2	6.92	1.66	4.17	0.69	19.5	4.7	1.03	.266	2.67	57	3.06	71	7.61	30.2
11	Kevin Brown K. Brown	2.39	2003	LAD	32	14	9	.609	32	185	0	0	0	211.0	184	56	67	11	56	5	0	2	856	5	7.89	2.39	3.30	0.47	21.6	6.5	1.14	.289	2.86	59	2.82	66	7.85	34.8
12	Mark Prior M. Prior	2.43	2003	CHC	30	18	6	.750	30	245	3	1	0	211.1	183	57	67	15	50	9	0	4	863	9	10.43	2.13	4.90	0.64	28.4	5.8	1.10	.309	2.85	57	2.47	56	7.79	44.5
13	Tim Lincecum T. Lincecum	2.48	2009	SFG	32	15	7	.682	32	261	4	2	0	225.1	168	62	69	10	68	6	0	2	905	11	10.42	2.72	3.84	0.40	28.8	7.5	1.05	.282	2.76	60	2.33	57	6.71	45.4
14	Randy Johnson R. Johnson	2.49	2001	ARI	35	21	6	.778	34	372	3	2	0	249.2	181	69	74	19	71	18	1	2	994	8	13.41	2.56	5.24	0.68	37.4	7.1	1.01	.315	2.67	55	2.12	48	6.52	63.9
15	Felix Hernandez F. Hernandez	2.49	2009	SEA	34	19	5	.792	34	217	2	1	0	238.2	200	66	81	15	71	8	0	0	977	17	8.18	2.68	3.06	0.57	22.2	7.3	1.14	.278	3.05	58	3.08	71	7.54	33.4
16	Johan Santana J. Santana	2.53	2008	NYM	34	16	7	.696	34	206	3	2	0	234.1	206	66	74	23	63	4	0	5	964	9	7.91	2.42	3.27	0.88	21.4	6.5	1.15	.274	2.84	61	3.50	82	7.91	20.2
17	Cliff Lee C. Lee	2.54	2008	CLE	31	22	3	.880	31	170	4	2	0	223.1	214	63	68	12	34	5	0	1	891	4	6.85	1.37	5.00	0.48	19.1	3.8	1.11	.301	2.74	59	2.82	67	8.62	35.4
18	Jake Peavy J. Peavy	2.54	2007	SDP	34	19	6	.760	34	240	0	0	0	223.1	169	63	67	13	68	6	0	5	898	4	9.67	2.74	3.53	0.52	26.7	7.6	1.06	.273	2.70	63	2.83	66	6.81	37.8
19	Derek Lowe D. Lowe	2.58	2002	BOS	32	21	8	.724	32	127	1	1	0	219.2	166	63	65	12	48	12	0	0	854	5	5.20	1.97	2.65	0.49	14.9	5.6	0.97	.235	2.66	57	3.33	79	6.80	22.4
20	Kevin Brown K. Brown	2.58	2000	LAD	33	13	6	.684	33	216	5	1	0	230.0	181	66	76	21	47	9	0	1	921	4	8.45	1.84	4.60	0.82	23.5	5.1	0.99	.255	2.97	60	3.16	68	7.08	38.5
21	Jair Jurrjens J. Jurrjens	2.60	2009	ATL	34	14	10	.583	34	152	0	0	0	215.0	186	62	71	15	75	3	0	1	884	3	6.36	3.14	2.03	0.63	17.2	8.5	1.21	.268	2.97	63	3.67	87	7.79	13.4
22	Randy Johnson R. Johnson	2.60	2004	ARI	35	16	14	.533	35	290	4	2	0	245.2	177	71	88	18	44	10	0	1	964	3	10.62	1.61	6.59	0.66	30.1	4.6	0.90	.264	3.22	57	2.29	51	6.48	59.7
23	Johan Santana J. Santana	2.61	2004	MIN	34	20	6	.769	34	265	1	1	0	228.0	156	66	70	24	54	9	0	0	881	7	10.46	2.13	4.91	0.95	30.1	6.1	0.92	.250	2.76	56	2.91	66	6.16	38.1
24	Tim Lincecum T. Lincecum	2.62	2008	SFG	34	18	5	.783	33	265	2	1	0	227.0	182	66	72	11	84	6	0	1	928	17	10.51	3.33	3.15	0.44	28.6	9.1	1.17	.304	2.85	61	2.61	62	7.22	41.5
25	Greg Maddux G. Maddux	2.62	2002	ATL	34	16	6	.727	34	118	0	0	0	199.1	194	58	67	14	45	4	0	7	820	1	5.33	2.03	2.62	0.63	14.4	5.5	1.20	.282	3.03	64	3.42	82	8.76	17.1