player lowest era, whip, season, min 45 ip, since 2010

Since 2010, Zack Britton has the lowest ERA with 45.0+ innings pitched in a season, with an ERA of 0.54 in 2016.

	NAME	ERA	WHIP	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%	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Zack Britton Z. Britton	0.54	0.84	67.0	2016	BAL	69	2	1	.667	0	74	0	0	47	38	4	7	1	18	0	63	3	254	10	9.94	2.42	4.11	0.13	29.1	7.1	.230	0.94	13	1.93	44	5.10	17.7
2	Fernando Rodney F. Rodney	0.60	0.78	74.2	2012	TBR	76	2	2	.500	0	76	0	0	48	43	5	9	2	15	3	65	1	282	4	9.16	1.81	5.07	0.24	27.0	5.3	.220	1.08	16	2.12	52	5.18	16.2
3	Emmanuel Clase E. Clase	0.61	0.66	74.1	2024	CLE	74	4	2	.667	0	66	0	0	47	39	5	10	2	10	2	66	1	270	2	7.99	1.21	6.60	0.24	24.4	3.7	.195	1.21	15	2.22	55	4.72	15.2
4	Blake Treinen B. Treinen	0.78	0.83	80.1	2018	OAK	68	9	2	.818	0	100	0	0	38	46	7	12	2	21	1	58	3	315	6	11.20	2.35	4.76	0.22	31.7	6.7	.230	1.34	19	1.81	44	5.15	21
5	Wade Davis W. Davis	0.94	0.79	67.1	2015	KCR	69	8	1	.889	0	78	0	0	17	33	7	8	3	20	0	24	1	251	1	10.43	2.67	3.90	0.40	31.1	8.0	.200	1.07	23	2.28	58	4.41	12.7
6	Aaron Loup A. Loup	0.95	0.94	56.2	2021	NYM	65	6	0	1.000	2	57	0	0	0	37	6	9	1	16	4	6	0	218	0	9.05	2.54	3.56	0.16	26.1	7.3	.257	1.43	24	2.44	58	5.88	11.2
7	Eric O'Flaherty E. O'Flaherty	0.98	1.09	73.2	2011	ATL	78	2	4	.333	0	67	0	0	0	59	8	9	2	21	3	5	8	301	1	8.19	2.57	3.19	0.24	22.3	7.0	.274	1.10	26	2.53	67	7.21	10.3
8	Wade Davis W. Davis	1.00	0.85	72.0	2014	KCR	71	9	2	.818	0	109	0	0	3	38	8	8	0	23	3	11	0	279	1	13.63	2.88	4.74	0.00	39.1	8.2	.264	1.00	25	1.18	32	4.75	20.7
9	Craig Kimbrel C. Kimbrel	1.01	0.65	62.2	2012	ATL	63	3	1	.750	0	116	0	0	42	27	7	7	3	14	2	56	0	231	5	16.66	2.01	8.29	0.43	50.2	6.1	.250	1.01	26	0.77	20	3.88	21.6
10	Chris Martin C. Martin	1.05	1.03	51.1	2023	BOS	55	4	1	.800	0	46	0	0	3	45	6	6	2	8	0	12	3	199	1	8.06	1.40	5.75	0.35	23.1	4.0	.301	1.05	23	2.43	56	7.89	10.7
11	Jacob deGrom J. deGrom	1.08	0.55	92.0	2021	NYM	15	7	2	.778	15	146	1	1	0	40	11	14	6	11	1	0	0	324	0	14.28	1.08	13.27	0.59	45.1	3.4	.213	1.37	27	1.23	29	3.91	30.6
12	David Robertson D. Robertson	1.08	1.13	66.2	2011	NYY	70	4	0	1.000	0	100	0	0	1	40	8	9	1	35	1	8	6	272	6	13.50	4.72	2.86	0.14	36.8	12.9	.289	1.21	26	1.83	44	5.40	17
13	Koji Uehara K. Uehara	1.09	0.57	74.1	2013	BOS	73	4	1	.800	0	101	0	0	21	33	9	10	5	9	1	40	2	265	1	12.23	1.09	11.22	0.61	38.1	3.4	.188	1.21	26	1.60	41	4.00	19.1
14	Neal Cotts N. Cotts	1.11	0.95	57.0	2013	TEX	58	8	3	.727	0	65	0	0	1	36	7	8	2	18	0	6	1	223	3	10.26	2.84	3.61	0.32	29.1	8.1	.246	1.26	26	2.17	53	5.68	11.8
15	Drew Storen D. Storen	1.12	0.98	56.1	2014	WSH	65	2	1	.667	0	46	0	0	11	44	7	8	2	11	3	18	3	224	4	7.35	1.76	4.18	0.32	20.5	4.9	.259	1.28	31	2.70	74	7.03	6
16	Evan Phillips E. Phillips	1.14	0.76	63.0	2022	LAD	64	7	3	.700	0	77	0	0	2	33	8	11	2	15	3	9	1	233	0	11.00	2.14	5.13	0.29	33.0	6.4	.228	1.57	29	1.93	48	4.71	14.5
17	Ryne Stanek R. Stanek	1.15	1.23	54.2	2022	HOU	59	2	1	.667	0	62	0	0	1	36	7	8	2	31	0	10	1	224	4	10.21	5.10	2.00	0.33	27.7	13.8	.264	1.32	30	3.01	77	5.93	5.4
18	Kirby Yates K. Yates	1.17	0.83	61.2	2024	TEX	61	7	2	.778	0	85	0	0	33	23	8	10	3	28	2	50	5	237	1	12.41	4.09	3.04	0.44	35.9	11.8	.168	1.46	29	2.49	60	3.36	11.3
19	Aroldis Chapman A. Chapman	1.18	0.74	45.2	2025	BOS	50	3	2	.600	0	65	0	0	21	21	6	7	3	13	0	28	0	171	3	12.81	2.56	5.00	0.59	38.0	7.6	.200	1.38	27	1.97	47	4.14	11.3
20	Ken Giles K. Giles	1.18	0.79	45.2	2014	PHI	44	3	1	.750	0	64	0	0	1	25	6	7	1	11	0	11	1	166	1	12.61	2.17	5.82	0.20	38.6	6.6	.267	1.38	33	1.33	35	4.93	12.1
21	Kirby Yates K. Yates	1.19	0.89	60.2	2019	SDP	60	0	5	.000	0	101	0	0	41	41	8	14	2	13	7	51	1	243	2	14.98	1.93	7.77	0.30	41.6	5.3	.325	2.08	28	1.29	29	6.08	21
22	Hung-Chih Kuo H. Kuo	1.20	0.78	60.0	2010	LAD	56	3	2	.600	0	73	0	0	12	29	8	8	1	18	1	16	0	229	3	10.95	2.70	4.06	0.15	31.9	7.9	.206	1.20	31	1.80	46	4.35	14.3
23	Brusdar Graterol B. Graterol	1.20	0.97	67.1	2023	LAD	68	4	2	.667	1	48	0	0	7	53	9	14	3	12	2	19	1	257	2	6.42	1.60	4.00	0.40	18.7	4.7	.260	1.87	28	3.03	68	7.08	10.6
24	Greg Holland G. Holland	1.21	0.87	67.0	2013	KCR	68	2	1	.667	0	103	0	0	47	40	9	11	3	18	0	61	1	255	2	13.84	2.42	5.72	0.40	40.4	7.1	.282	1.48	30	1.36	35	5.37	19.3
25	Craig Kimbrel C. Kimbrel	1.21	0.88	67.0	2013	ATL	68	4	3	.571	0	98	0	0	50	39	9	10	4	20	3	60	2	258	3	13.16	2.69	4.90	0.54	38.0	7.8	.263	1.34	33	1.92	53	5.24	13.2