players with an earned run average below 2.5 and at least 150 innings pitched in a single season since 2010

Clay Buchholz had an ERA of 2.33 when pitching at least 150 innings in 2010.

	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	Clay Buchholz C. Buchholz	2.33	173.2	2010	BOS	28	17	7	.708	28	120	1	1	0	142	45	55	9	67	5	0	1	711	7	6.22	3.47	1.79	0.47	16.9	9.4	1.20	.261	2.85	54	3.61	87	7.36	10
2	Roy Halladay R. Halladay	2.44	250.2	2010	PHI	33	21	10	.677	33	219	9	4	0	231	68	74	24	30	6	0	1	993	5	7.86	1.08	7.30	0.86	22.1	3.0	1.04	.290	2.66	61	3.00	75	8.29	27.6
3	Felix Hernandez F. Hernandez	2.27	249.2	2010	SEA	34	13	12	.520	34	232	6	1	0	194	63	80	17	70	8	0	1	1,001	14	8.36	2.52	3.31	0.61	23.2	7.0	1.06	.263	2.88	58	3.04	75	6.99	28.4
4	Josh Johnson J. Johnson	2.30	183.2	2010	FLA	28	11	6	.647	28	186	1	0	0	155	47	51	7	48	5	0	2	744	4	9.11	2.35	3.88	0.34	25.0	6.5	1.11	.297	2.50	57	2.41	62	7.60	31.2
5	Adam Wainwright A. Wainwright	2.42	230.1	2010	STL	33	20	11	.645	33	213	5	2	0	186	62	68	15	56	4	0	2	910	2	8.32	2.19	3.80	0.59	23.4	6.2	1.05	.275	2.66	62	2.85	73	7.27	27.5
6	Johnny Cueto J. Cueto	2.31	156.0	2011	CIN	24	9	5	.643	24	104	3	1	0	123	40	51	8	47	10	0	0	631	5	6.00	2.71	2.21	0.46	16.5	7.4	1.09	.249	2.94	60	3.45	87	7.10	8.8
7	Roy Halladay R. Halladay	2.35	233.2	2011	PHI	32	19	6	.760	32	220	8	1	0	208	61	65	10	35	4	0	4	933	2	8.47	1.35	6.29	0.39	23.6	3.8	1.04	.298	2.50	61	2.19	56	8.01	43.5
8	Clayton Kershaw C. Kershaw	2.28	233.1	2011	LAD	33	21	5	.808	33	248	5	2	0	174	59	66	15	54	3	0	2	912	5	9.57	2.08	4.59	0.58	27.2	5.9	0.98	.269	2.55	63	2.46	65	6.71	35.1
9	Cliff Lee C. Lee	2.40	232.2	2011	PHI	32	17	8	.680	32	238	6	6	0	197	62	66	18	42	6	0	0	920	0	9.21	1.62	5.67	0.70	25.9	4.6	1.03	.291	2.55	62	2.60	67	7.62	33
10	Justin Verlander J. Verlander	2.40	251.0	2011	DET	34	24	5	.828	34	250	4	2	0	174	67	73	24	57	3	0	0	969	7	8.96	2.04	4.39	0.86	25.8	5.9	0.92	.236	2.62	58	2.99	74	6.24	29.4
11	Jered Weaver J. Weaver	2.41	235.2	2011	LAA	33	18	8	.692	33	198	4	2	0	182	63	65	20	56	3	0	0	926	8	7.56	2.14	3.54	0.76	21.4	6.0	1.01	.250	2.48	61	3.19	81	6.95	20.3
12	Jose Fernandez J. Fernandez	2.19	172.2	2013	MIA	28	12	6	.667	28	187	0	0	0	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
13	Matt Harvey M. Harvey	2.27	178.1	2013	NYM	26	9	5	.643	26	191	1	1	0	135	45	46	7	31	4	0	1	690	2	9.64	1.56	6.16	0.35	27.7	4.5	0.93	.280	2.32	64	2.00	53	6.81	34.9
14	Clayton Kershaw C. Kershaw	1.83	236.0	2013	LAD	33	16	9	.640	33	232	3	2	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
15	Johnny Cueto J. Cueto	2.25	243.2	2014	CIN	34	20	9	.690	34	242	4	2	0	169	61	69	22	65	15	0	2	961	1	8.94	2.40	3.72	0.81	25.2	6.8	0.96	.238	2.55	61	3.30	87	6.24	13.4
16	Doug Fister D. Fister	2.41	164.0	2014	WSH	25	16	6	.727	25	98	1	1	0	153	44	52	18	24	7	0	0	662	5	5.38	1.32	4.08	0.99	14.8	3.6	1.08	.262	2.85	66	3.93	108	8.40	-5.1
17	Cole Hamels C. Hamels	2.46	204.2	2014	PHI	30	9	9	.500	30	198	0	0	0	176	56	60	14	59	8	0	3	829	6	8.71	2.59	3.36	0.62	23.9	7.1	1.15	.295	2.64	68	3.06	81	7.74	15.7
18	Felix Hernandez F. Hernandez	2.14	236.0	2014	SEA	34	15	6	.714	34	248	0	0	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	Clayton Kershaw C. Kershaw	1.77	198.1	2014	LAD	27	21	3	.875	27	239	6	2	0	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
20	Corey Kluber C. Kluber	2.44	235.2	2014	CLE	34	18	9	.667	34	269	3	1	0	207	64	72	14	51	6	0	3	951	3	10.27	1.95	5.27	0.53	28.3	5.4	1.09	.316	2.75	63	2.34	61	7.91	38.5
21	Jon Lester J. Lester	2.46	219.2	2014	TOT	32	16	11	.593	32	220	1	1	0	194	60	76	16	48	5	0	0	885	3	9.01	1.97	4.58	0.66	24.9	5.4	1.10	.299	3.11	63	2.80	75	7.95	23.1
22	Chris Sale C. Sale	2.17	174.0	2014	CWS	26	12	4	.750	26	208	2	0	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	Adam Wainwright A. Wainwright	2.38	227.0	2014	STL	32	20	9	.690	32	179	5	3	0	184	60	64	10	50	7	0	5	898	4	7.10	1.98	3.58	0.40	19.9	5.6	1.03	.267	2.54	66	2.88	79	7.30	19.6
24	Jake Arrieta J. Arrieta	1.77	229.0	2015	CHC	33	22	6	.786	33	236	4	3	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
25	Zack Greinke Z. Greinke	1.66	222.2	2015	LAD	32	19	3	.864	32	200	1	0	0	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