lowest earned run average with at least 50 innings pitched in 2011 as a cub

Sean Marshall had the lowest ERA for the Cubs with 50.0+ innings pitched in 2011, with an ERA of 2.26.

	NAME	ERA	IP	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	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	Sean Marshall S. Marshall	2.26	75.2	2011	CHC	78	6	6	.500	0	79	0	0	5	66	19	21	1	17	2	18	4	307	0	9.40	2.02	4.65	0.12	25.7	5.5	1.10	.313	2.50	57	1.86	48	7.85	16.9
2	Jeff Samardzija J. Samardzija	2.97	88.0	2011	CHC	75	8	4	.667	0	87	0	0	0	64	29	35	5	50	5	18	3	380	8	8.90	5.11	1.74	0.51	22.9	13.2	1.30	.253	3.58	75	3.65	94	6.55	2.2
3	Matt Garza M. Garza	3.32	198.0	2011	CHC	31	10	10	.500	31	197	2	0	0	186	73	90	14	63	3	0	5	839	6	8.95	2.86	3.13	0.64	23.5	7.5	1.26	.306	4.09	84	2.95	76	8.45	20.4
4	Kerry Wood K. Wood	3.35	51.0	2011	CHC	55	3	5	.375	0	57	0	0	1	45	19	23	5	21	5	7	2	224	5	10.06	3.71	2.71	0.88	25.4	9.4	1.29	.294	4.06	85	3.59	92	7.94	1.7
5	Carlos Marmol C. Marmol	4.01	74.0	2011	CHC	75	2	6	.250	0	99	0	0	34	54	33	33	5	48	9	61	2	327	4	12.04	5.84	2.06	0.61	30.3	14.7	1.38	.295	4.01	101	3.53	91	6.57	2.9
6	James Russell J. Russell	4.12	67.2	2011	CHC	64	1	6	.143	5	43	0	0	0	76	31	37	12	14	2	10	4	292	1	5.72	1.86	3.07	1.60	14.7	4.8	1.33	.290	4.92	104	4.76	123	10.11	-6.5
7	Rodrigo Lopez R. Lopez	4.42	97.2	2011	CHC	26	6	6	.500	16	54	0	0	0	116	48	56	18	29	5	3	3	430	0	4.98	2.67	1.86	1.66	12.6	6.7	1.48	.302	5.16	112	5.35	138	10.69	-15.8
8	John Grabow J. Grabow	4.76	62.1	2011	CHC	58	3	1	.750	0	38	0	0	0	67	33	39	9	28	1	22	4	282	3	5.49	4.04	1.36	1.30	13.5	9.9	1.52	.282	5.63	120	5.07	131	9.67	-8.1
9	Ryan Dempster R. Dempster	4.80	202.1	2011	CHC	34	10	14	.417	34	191	0	0	0	211	108	111	23	82	5	0	2	881	7	8.50	3.65	2.33	1.02	21.7	9.3	1.45	.324	4.94	121	3.90	100	9.39	-0.3
10	Carlos Zambrano C. Zambrano	4.82	145.2	2011	CHC	24	9	7	.563	24	101	0	0	0	154	78	80	19	56	5	0	4	634	1	6.24	3.46	1.80	1.17	15.9	8.8	1.44	.298	4.94	122	4.58	118	9.51	-11.2
11	Randy Wells R. Wells	4.99	135.1	2011	CHC	23	7	6	.538	23	82	2	1	0	141	75	76	23	47	2	0	4	583	8	5.45	3.13	1.74	1.53	14.1	8.1	1.39	.275	5.05	126	5.10	131	9.38	-18.1
12	Casey Coleman C. Coleman	6.40	84.1	2011	CHC	19	3	9	.250	17	75	0	0	0	102	60	62	10	46	4	1	3	398	3	8.00	4.91	1.63	1.07	18.8	11.6	1.75	.350	6.62	162	4.56	117	10.89	-6.3