best left handed reliever era after the 7 inning minimum of 20 games in 2023

Josh Hader had the best ERA by a left-handed relief pitcher with 20+ games pitched in 2023, with an ERA of 1.28.

	NAME	ERA	G	SEASON	TM	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	Josh Hader J. Hader	1.28	61	2023	SDP	2	3	.400	0	85	0	0	32	56.1	32	8	11	3	30	3	52	2	231	3	13.58	4.79	2.83	0.48	36.8	13.0	1.10	.264	1.76	5.11
2	Tim Mayza T. Mayza	1.52	69	2023	TOR	3	1	.750	0	53	0	0	1	53.1	50	9	10	2	15	0	8	3	215	1	8.94	2.53	3.53	0.34	24.7	7.0	1.22	.331	1.69	8.44
3	José Alvarado J. Alvarado	1.74	42	2023	PHI	0	2	.000	0	64	0	0	10	41.1	30	8	15	3	18	0	12	1	172	3	13.94	3.92	3.56	0.65	37.2	10.5	1.16	.310	3.27	6.53
4	Tom Cosgrove T. Cosgrove	1.75	54	2023	SDP	1	2	.333	0	44	0	0	1	51.1	31	10	12	3	19	5	16	1	205	1	7.71	3.33	2.32	0.53	21.5	9.3	0.97	.209	2.10	5.44
5	Hoby Milner H. Milner	1.82	73	2023	MIL	2	1	.667	0	59	0	0	0	64.1	49	13	16	5	13	2	6	0	252	1	8.25	1.82	4.54	0.70	23.4	5.2	0.96	.254	2.24	6.85
6	Tyler Holton T. Holton	2.13	58	2023	DET	3	2	.600	0	73	0	0	1	84.1	56	20	21	9	17	1	7	1	321	4	7.79	1.81	4.29	0.96	22.7	5.3	0.87	.213	2.24	5.98
7	Colin Poche C. Poche	2.23	66	2023	TBR	12	3	.800	0	61	0	0	1	60.2	42	15	17	4	24	1	6	1	246	3	9.05	3.56	2.54	0.59	24.8	9.8	1.09	.244	2.52	6.23
8	Tanner Scott T. Scott	2.31	74	2023	MIA	9	5	.643	0	104	0	0	12	78.0	53	20	22	3	24	4	26	3	307	1	12.00	2.77	4.33	0.35	33.9	7.8	0.99	.291	2.54	6.12
9	Matt Moore M. Moore	2.56	50	2023	TOT	5	1	.833	0	60	0	0	0	52.2	46	15	16	7	15	3	4	3	218	1	10.25	2.56	4.00	1.20	27.5	6.9	1.16	.293	2.73	7.86
10	Nick Ramirez N. Ramirez	2.66	32	2023	NYY	1	2	.333	0	28	0	0	1	40.2	41	12	17	1	9	1	12	0	172	0	6.20	1.99	3.11	0.22	16.3	5.2	1.23	.301	3.76	9.07
11	Andrew Nardi A. Nardi	2.67	63	2023	MIA	8	1	.889	0	73	0	0	3	57.1	45	17	18	7	21	4	10	2	237	0	11.46	3.30	3.48	1.10	30.8	8.9	1.15	.288	2.83	7.06
12	Ryan Borucki R. Borucki	2.70	36	2023	PIT	4	0	1.000	0	27	0	0	0	36.2	26	11	11	4	4	3	1	0	140	1	6.63	0.98	6.75	0.98	19.3	2.9	0.82	.216	2.70	6.38
13	Brooks Raley B. Raley	2.80	66	2023	NYM	1	2	.333	0	61	0	0	3	54.2	44	17	19	4	25	6	11	3	236	0	10.04	4.12	2.44	0.66	25.8	10.6	1.26	.286	3.13	7.24
14	Danny Coulombe D. Coulombe	2.81	61	2023	BAL	5	3	.625	0	58	0	0	2	51.1	45	16	17	4	12	2	9	0	210	2	10.17	2.10	4.83	0.70	27.6	5.7	1.11	.306	2.98	7.89
15	Matt Strahm M. Strahm	2.82	46	2023	PHI	7	2	.778	0	65	0	0	2	54.1	43	17	19	8	12	0	6	0	216	0	10.77	1.99	5.42	1.33	30.1	5.6	1.01	.267	3.15	7.12
16	Wandy Peralta W. Peralta	2.83	63	2023	NYY	4	2	.667	0	51	0	0	4	54.0	36	17	19	7	30	6	11	0	227	1	8.50	5.00	1.70	1.17	22.5	13.2	1.22	.218	3.17	6.00
17	Caleb Ferguson C. Ferguson	3.02	61	2023	LAD	7	2	.778	0	65	0	0	3	53.2	53	18	25	3	20	7	9	0	236	3	10.90	3.35	3.25	0.50	27.5	8.5	1.36	.355	4.19	8.89
18	Sam Moll S. Moll	3.08	69	2023	TOT	2	3	.400	0	65	0	0	1	61.1	46	21	22	2	30	7	13	8	264	4	9.54	4.40	2.17	0.29	24.6	11.4	1.24	.275	3.23	6.75
19	Aroldis Chapman A. Chapman	3.09	61	2023	TOT	6	4	.600	0	103	0	0	6	58.1	37	20	24	4	36	1	18	2	249	9	15.89	5.55	2.86	0.62	41.4	14.5	1.25	.314	3.70	5.71
20	Caleb Thielbar C. Thielbar	3.23	36	2023	MIN	3	1	.750	0	36	0	0	0	30.2	23	11	12	7	6	0	4	0	120	1	10.57	1.76	6.00	2.05	30.0	5.0	0.95	.225	3.52	6.75
21	Brent Suter B. Suter	3.26	55	2023	COL	4	3	.571	0	53	0	0	0	66.1	63	24	34	3	23	2	12	0	279	1	7.19	3.12	2.30	0.41	19.0	8.2	1.30	.303	4.61	8.55
22	Amir Garrett A. Garrett	3.33	27	2023	KCR	0	1	.000	0	28	0	0	0	24.1	22	9	11	4	20	0	3	0	112	1	10.36	7.40	1.40	1.48	25.0	17.9	1.73	.300	4.07	8.14
23	Jake Diekman J. Diekman	3.34	63	2023	TOT	0	2	.000	0	64	0	0	0	56.2	37	21	29	3	38	1	22	1	243	3	10.16	6.04	1.68	0.48	26.3	15.6	1.32	.248	4.61	5.88
24	Andrew Vasquez A. Vasquez	3.35	42	2023	TOT	2	1	.667	0	43	0	0	0	48.1	46	18	21	4	23	7	13	1	219	2	8.01	4.28	1.87	0.74	19.6	10.5	1.43	.296	3.91	8.57
25	Brennan Bernardino B. Bernardino	3.46	49	2023	BOS	2	1	.667	0	44	0	0	0	41.2	41	16	17	4	16	3	8	1	178	3	9.50	3.46	2.75	0.86	24.7	9.0	1.37	.333	3.67	8.86