lowest single season era with a so/9 under 6 min 50 innings pitched since 2000

Since 2000, Brad Ziegler has the best ERA with fewer than 6.00 K/9 and 50.0+ innings pitched in a season, with an ERA of 1.06 in his rookie season in 2008.

Interpreted as:

lowest single season era by a player with a so/9 under 6 min 50 innings pitched since 2000

	NAME	ERA	K/9	IP	SEASON	TM	G	W	L	W%	GS	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Brad Ziegler B. Ziegler	1.06	4.53	59.2	2008	OAK	47	3	0	1.000	0	30	0	0	11	47	7	8	2	22	1	21	3	229	0	3.32	1.36	0.30	13.1	9.6	1.16	.259	1.21	25	3.71	88	7.09	3.5
2	Scott Downs S. Downs	1.34	5.87	53.2	2011	LAA	60	6	3	.667	0	35	0	0	1	39	8	11	3	15	0	10	3	218	2	2.52	2.33	0.50	16.1	6.9	1.01	.218	1.84	34	3.28	83	6.54	4.1
3	Shigetoshi Hasegawa S. Hasegawa	1.48	3.95	73.0	2003	SEA	63	2	4	.333	0	32	0	0	16	62	12	12	5	18	0	36	3	283	0	2.22	1.78	0.62	11.3	6.4	1.10	.250	1.48	34	3.78	86	7.64	4.8
4	Luis Avilan L. Avilan	1.52	5.26	65.0	2013	ATL	75	5	0	1.000	0	38	0	0	0	40	11	12	1	22	4	7	2	256	3	3.05	1.73	0.14	14.8	8.6	0.95	.204	1.66	41	3.27	90	5.54	2.7
5	Paul Quantrill P. Quantrill	1.75	5.12	77.1	2003	LAD	89	2	5	.286	0	44	0	0	1	61	15	18	2	15	3	21	2	291	0	1.75	2.93	0.23	15.1	5.2	0.98	.260	2.09	43	2.92	68	7.10	11.9
6	Craig Breslow C. Breslow	1.81	4.98	59.2	2013	BOS	61	5	2	.714	0	33	0	0	0	49	12	16	3	18	2	13	0	237	2	2.72	1.83	0.45	13.9	7.6	1.12	.254	2.41	43	3.60	93	7.39	1.9
7	Brad Ziegler B. Ziegler	1.85	4.76	68.0	2015	ARI	66	0	3	.000	0	36	0	0	30	48	14	17	3	17	1	46	3	263	2	2.25	2.12	0.40	13.7	6.5	0.96	.218	2.25	45	3.44	88	6.35	3.6
8	Jarred Cosart J. Cosart	1.95	4.95	60.0	2013	HOU	10	1	1	.500	10	33	0	0	0	46	13	15	3	35	0	0	0	246	3	5.25	0.94	0.45	13.4	14.2	1.35	.246	2.25	49	4.34	109	6.90	-2.2
9	Jared Hughes J. Hughes	1.96	5.04	64.1	2014	PIT	63	7	5	.583	0	36	0	0	0	51	14	21	4	19	6	16	5	256	2	2.66	1.89	0.56	14.1	7.4	1.09	.246	2.94	56	3.98	111	7.13	-3.1
10	Dallas Keuchel D. Keuchel	1.99	5.97	63.1	2020	CWS	11	6	2	.750	11	42	0	0	0	52	14	15	2	17	0	0	0	257	0	2.42	2.47	0.28	16.3	6.6	1.09	.255	2.13	45	3.07	66	7.39	10.6
11	Richard Bleier R. Bleier	1.99	3.69	63.1	2017	BAL	57	2	1	.667	0	26	0	0	0	62	14	23	6	13	4	14	3	265	5	1.85	2.00	0.85	9.8	4.9	1.18	.259	3.27	45	4.37	96	8.81	1.4
12	T.J. McFarland	2.00	5.25	72.0	2018	ARI	47	2	2	.500	0	42	0	0	1	64	16	18	4	22	0	21	3	292	2	2.75	1.91	0.50	14.4	7.5	1.19	.268	2.25	49	3.63	91	8.00	2.8
13	Dustin Hermanson D. Hermanson	2.04	5.18	57.1	2005	CWS	57	2	4	.333	0	33	0	0	34	46	13	17	4	17	1	45	4	228	3	2.67	1.94	0.63	14.5	7.5	1.10	.243	2.67	46	3.71	82	7.22	5.1
14	Chad Bradford C. Bradford	2.12	2.58	59.1	2008	TOT	68	4	3	.571	0	17	0	0	0	59	14	20	3	15	2	9	6	241	0	2.28	1.13	0.46	7.1	6.2	1.25	.275	3.03	48	4.07	92	8.95	2.2
15	Alex Wilson A. Wilson	2.19	4.89	70.0	2015	DET	59	3	3	.500	1	38	0	0	2	61	17	19	5	11	2	16	1	273	2	1.41	3.45	0.64	13.9	4.0	1.03	.258	2.44	53	3.53	86	7.84	4.5
16	Brad Ziegler B. Ziegler	2.22	5.42	73.0	2013	ARI	78	8	1	.889	0	44	0	0	13	61	18	20	3	22	3	33	6	297	0	2.71	2.00	0.37	14.8	7.4	1.14	.258	2.47	57	3.40	90	7.52	2.9
17	Jim Johnson J. Johnson	2.23	4.98	68.2	2008	BAL	54	2	4	.333	0	38	0	0	1	54	17	18	0	28	3	18	3	281	1	3.67	1.36	0.00	13.5	10.0	1.19	.255	2.36	50	3.37	75	7.08	8.3
18	Jared Hughes J. Hughes	2.28	4.84	67.0	2015	PIT	76	3	1	.750	0	36	0	0	0	70	17	21	3	19	7	11	2	284	3	2.55	1.89	0.40	12.7	6.7	1.33	.306	2.82	60	3.80	100	9.40	-0.1
19	Dan Otero D. Otero	2.28	4.67	86.2	2014	OAK	72	8	2	.800	0	45	0	0	1	80	22	24	4	15	2	14	7	349	1	1.56	3.00	0.42	12.9	4.3	1.10	.269	2.49	62	3.28	88	8.31	4.2
20	Burke Badenhop B. Badenhop	2.29	5.09	70.2	2014	BOS	70	0	3	.000	0	40	0	0	1	70	18	20	1	19	2	11	5	289	2	2.42	2.11	0.13	13.8	6.6	1.26	.304	2.55	57	3.07	82	8.92	5.3
21	Seth Maness S. Maness	2.32	5.08	62.0	2013	STL	66	5	2	.714	0	35	0	0	1	65	16	17	4	13	1	4	7	249	2	1.89	2.69	0.58	14.1	5.2	1.26	.311	2.47	63	3.43	92	9.44	2
22	George Kontos G. Kontos	2.33	5.40	73.1	2015	SFG	73	4	4	.500	0	44	0	0	0	57	19	20	9	12	0	12	3	284	3	1.47	3.67	1.10	15.5	4.2	0.94	.219	2.45	62	4.01	109	7.00	-3
23	Javier Lopez J. Lopez	2.34	5.93	57.2	2010	TOT	77	4	2	.667	0	38	0	0	0	50	15	17	2	20	2	18	3	235	3	3.12	1.90	0.31	16.2	8.5	1.21	.277	2.65	60	3.35	86	7.80	3.6
24	Casey Janssen C. Janssen	2.35	4.83	72.2	2007	TOR	70	2	3	.400	0	39	0	0	6	67	19	22	4	20	3	21	2	297	4	2.48	1.95	0.50	13.1	6.7	1.20	.273	2.72	52	3.82	85	8.30	5.3
25	Matt Guerrier M. Guerrier	2.36	5.54	76.1	2009	MIN	79	5	1	.833	0	47	0	0	1	58	20	23	10	16	4	15	2	304	6	1.89	2.94	1.18	15.5	5.3	0.97	.211	2.71	54	4.34	102	6.84	-0.7