lowest era by a rockies starting pitcher who played at least 10 games

Ubaldo Jimenez had the lowest ERA by a Rockies starting pitcher when pitching in 10+ games, with an ERA of 3.66.

	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	H/9
1	Ubaldo Jimenez U. Jimenez	3.66	137	56	45	.554	137	773	8	3	0	850.0	720	346	375	55	371	42	0	26	3,587	49	8.18	3.93	2.08	0.58	21.6	10.3	1.28	.283	3.97	7.62
2	Jhoulys Chacin J. Chacin	3.75	110	38	47	.447	110	490	2	1	0	657.0	608	274	304	58	272	18	0	8	2,795	24	6.71	3.73	1.80	0.79	17.5	9.7	1.34	.281	4.16	8.33
3	Julian Tavarez J. Tavarez	3.80	12	5	3	.625	12	28	1	0	0	68.2	66	29	35	3	29	3	0	5	298	1	3.67	3.80	0.97	0.39	9.4	9.7	1.38	.268	4.59	8.65
4	Tyler Matzek T. Matzek	4.01	24	8	11	.421	24	106	1	1	0	139.0	140	62	62	11	62	5	0	1	600	5	6.86	4.01	1.71	0.71	17.7	10.3	1.45	.310	4.01	9.06
5	Jason Marquis J. Marquis	4.04	33	15	13	.536	33	115	2	1	0	216.0	218	97	104	15	80	4	0	6	921	6	4.79	3.33	1.44	0.63	12.5	8.7	1.38	.287	4.33	9.08
6	Tyler Chatwood T. Chatwood	4.09	88	33	33	.500	88	345	2	1	0	481.1	466	219	238	49	218	13	0	11	2,058	30	6.45	4.08	1.58	0.92	16.8	10.6	1.42	.291	4.45	8.71
7	Jorge De La Rosa J. De La Rosa	4.38	200	85	61	.582	200	965	2	0	0	1124.1	1,085	547	594	126	474	47	0	22	4,844	67	7.72	3.79	2.04	1.01	19.9	9.8	1.39	.297	4.75	8.69
8	Rodrigo Lopez R. Lopez	4.42	14	5	4	.556	14	43	0	0	0	79.1	83	39	43	11	21	0	0	6	333	0	4.88	2.38	2.05	1.25	12.9	6.3	1.31	.279	4.88	9.42
9	Aaron Cook A. Cook	4.46	206	71	68	.511	206	540	11	2	0	1268.2	1,464	628	675	107	390	45	0	42	5,512	34	3.83	2.77	1.38	0.76	9.8	7.1	1.46	.306	4.79	10.39
10	Kyle Freeland K. Freeland	4.55	231	64	90	.416	231	936	0	0	0	1254.0	1,388	634	688	180	390	47	0	12	5,439	17	6.72	2.80	2.40	1.29	17.2	7.2	1.42	.311	4.94	9.96
11	Jon Gray J. Gray	4.59	151	53	49	.520	151	849	1	1	0	829.0	830	423	451	105	277	36	0	9	3,552	35	9.22	3.01	3.06	1.14	23.9	7.8	1.34	.317	4.90	9.01
12	Armando Reynoso A. Reynoso	4.63	87	30	31	.492	87	270	5	0	0	501.0	567	258	287	66	170	29	0	11	2,197	15	4.85	3.05	1.59	1.19	12.3	7.7	1.47	.301	5.16	10.19
13	Germán Márquez G. Márquez	4.67	200	68	72	.486	200	1,066	4	2	0	1141.0	1,169	592	639	165	350	38	0	14	4,881	61	8.41	2.76	3.05	1.30	21.8	7.2	1.33	.308	5.04	9.22
14	Jason Hammel J. Hammel	4.73	87	27	29	.482	87	353	1	0	0	505.2	564	266	287	53	152	21	0	10	2,204	25	6.28	2.71	2.32	0.94	16.0	6.9	1.42	.314	5.11	10.04
15	Jason Jennings J. Jennings	4.74	156	58	56	.509	156	622	6	3	0	941.0	1,032	496	530	103	425	29	0	34	4,180	42	5.95	4.06	1.46	0.99	14.9	10.2	1.55	.310	5.07	9.87
16	Tyler Anderson T. Anderson	4.75	71	17	24	.415	71	360	0	0	0	392.0	403	207	219	66	123	8	0	3	1,665	17	8.27	2.82	2.93	1.52	21.6	7.4	1.34	.304	5.03	9.25
17	Roger Bailey R. Bailey	4.76	46	15	14	.517	46	124	5	2	0	289.1	319	153	168	37	117	14	0	3	1,268	9	3.86	3.64	1.06	1.15	9.8	9.2	1.51	.289	5.23	9.92
18	Marvin Freeman M. Freeman	4.85	59	19	17	.528	59	188	0	0	0	324.2	373	175	194	44	110	12	0	3	1,429	21	5.21	3.05	1.71	1.22	13.2	7.7	1.49	.306	5.38	10.34
19	Jason Hirsh J. Hirsh	4.86	20	5	7	.417	20	79	1	0	0	116.2	108	63	66	20	50	2	0	5	503	5	6.09	3.86	1.58	1.54	15.7	9.9	1.35	.250	5.09	8.33
20	Curt Leskanic C. Leskanic	4.87	11	2	5	.286	11	35	0	0	0	61.0	61	33	36	6	25	2	0	0	266	5	5.16	3.69	1.40	0.89	13.2	9.4	1.41	.278	5.31	9.00
21	Joe Kennedy J. Kennedy	4.88	43	13	15	.464	43	169	1	0	0	254.1	291	138	149	29	111	14	0	16	1,147	12	5.98	3.93	1.52	1.03	14.7	9.7	1.58	.318	5.27	10.30
22	Chad Bettis C. Bettis	4.91	92	29	25	.537	92	374	1	1	0	507.1	551	277	296	65	183	16	0	13	2,226	18	6.63	3.25	2.04	1.15	16.8	8.2	1.45	.306	5.25	9.77
23	Jeff Francis J. Francis	4.93	185	64	62	.508	185	727	2	2	0	1050.2	1,182	575	603	135	328	43	0	42	4,583	10	6.23	2.81	2.22	1.16	15.9	7.2	1.44	.313	5.17	10.13
24	Shawn Chacon S. Chacon	4.96	83	23	36	.390	83	333	0	0	0	488.0	471	269	286	70	238	37	0	20	2,160	17	6.14	4.39	1.40	1.29	15.4	11.0	1.45	.271	5.27	8.69
25	Jordan Lyles J. Lyles	4.97	37	10	11	.476	37	132	0	0	0	195.2	208	108	120	15	79	13	0	3	860	10	6.07	3.63	1.67	0.69	15.3	9.2	1.47	.311	5.52	9.57