all-time era- leaders, minimum 500 ip, maximum 300 saves, maximum 500 starts

Darren O'Day has the lowest career ERA- with at most 300 saves, when pitching at least 500 innings and starting at most 500 games, with an ERA- of 61.

	NAME	ERA-	IP	SV	GS	G	W	L	W%	ERA	SO	CG	SHO	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	FIP	FIP-	H/9	PRAA
1	Darren O'Day D. O'Day	61	609.0	21	0	644	42	21	.667	2.59	637	0	0	458	175	189	64	172	50	155	24	2,461	3	9.41	2.54	3.70	0.95	25.9	7.0	1.03	.256	2.79	3.48	82	6.77	52.4
2	Josh Hader J. Hader	64	512.1	226	0	468	34	31	.523	2.64	829	0	0	282	150	164	65	198	24	321	6	2,019	19	14.56	3.48	4.19	1.14	41.1	9.8	0.94	.240	2.88	2.88	69	4.95	75.8
3	Clayton Kershaw C. Kershaw	64	2814.1	0	443	446	218	96	.694	2.52	3,014	25	15	2,162	787	864	233	697	46	1	28	11,112	107	9.64	2.23	4.32	0.75	27.1	6.3	1.02	.271	2.76	2.84	70	6.91	369.9
4	Jacob deGrom J. deGrom	65	1502.1	0	241	241	94	62	.603	2.55	1,809	4	2	1,149	426	463	139	338	24	0	13	5,901	28	10.84	2.02	5.35	0.83	30.7	5.7	0.99	.281	2.77	2.67	65	6.88	238.4
5	Pedro Martinez P. Martinez	66	2827.1	3	409	476	219	100	.687	2.93	3,154	46	17	2,221	919	1,006	239	760	141	23	30	11,394	62	10.04	2.42	4.15	0.76	27.7	6.7	1.05	.279	3.20	2.91	68	7.07	454.6
6	Jim Devlin J. Devlin	67	1181.0	0	129	129	65	60	.520	1.89	263	127	9	1,183	248	597	7	78		0		4,896	34	2.00	0.59	3.37	0.05	5.4	1.6	1.07		4.55	2.35	84	9.02	88.9
7	Blake Treinen B. Treinen	68	562.1	82	7	513	43	36	.544	2.82	579	0	0	473	176	201	42	212	19	193	22	2,320	23	9.27	3.39	2.73	0.67	25.0	9.1	1.22	.294	3.22	3.30	79	7.57	53.5
8	Brad Ziegler B. Ziegler	68	717.1	105	0	739	37	38	.493	2.75	479	0	0	654	219	251	32	248	25	264	55	2,947	7	6.01	3.11	1.93	0.40	16.3	8.4	1.26	.288	3.15	3.49	87	8.21	41.9
9	Lefty Grove L. Grove	68	3940.2	54	457	616	300	141	.680	3.06	2,266	298	35	3,849	1,339	1,594	162	1,187	42	123		16,622	51	5.18	2.71	1.91	0.37	13.6	7.1	1.28	.284	3.64	3.36	76	8.79	462.8
10	Hoyt Wilhelm H. Wilhelm	68	2254.1	228	52	1,070	143	122	.540	2.52	1,610	20	5	1,757	632	773	150	778	62	651	61	9,164	90	6.43	3.11	2.07	0.60	17.6	8.5	1.12	.245	3.09	3.06	82	7.01	167.6
11	Ed Walsh E. Walsh	69	2964.1	35	315	430	195	126	.607	1.82	1,736	250	57	2,346	598	873	23	617	52	105		11,413	76	5.27	1.87	2.81	0.07	15.2	5.4	1.00	.259	2.65	2.02	79	7.12	164.3
12	Dan Quisenberry D. Quisenberry	69	1043.1	244	0	674	56	46	.549	2.76	379	0	0	1,064	320	356	59	162	7	553	70	4,247	4	3.27	1.40	2.34	0.51	8.9	3.8	1.18	.276	3.07	3.23	82	9.18	81.6
13	David Robertson D. Robertson	70	878.2	177	1	863	66	46	.589	2.90	1,157	0	0	658	283	306	77	358	25	355	37	3,621	57	11.85	3.67	3.23	0.79	32.0	9.9	1.16	.290	3.13	2.93	69	6.74	124.2
14	Joe Wood J. Wood	70	1434.1	10	158	225	117	57	.672	2.03	989	121	28	1,138	324	497	10	421	49	56		5,640	43	6.21	2.64	2.35	0.06	17.5	7.5	1.09	.270	3.12	2.26	78	7.14	105.8
15	Addie Joss A. Joss	70	2327.0	5	260	286	160	97	.623	1.89	920	234	45	1,888	488	730	19	364	58	22		8,891	28	3.56	1.41	2.53	0.07	10.3	4.1	0.97	.248	2.82	2.25	86	7.30	88.8
16	Raisel Iglesias R. Iglesias	70	718.1	241	21	582	42	55	.433	2.98	850	0	0	563	238	264	83	196	27	442	17	2,897	17	10.65	2.46	4.34	1.04	29.3	6.8	1.06	.276	3.31	3.22	77	7.05	78.6
17	Mordecai Brown M. Brown	71	3172.1	49	332	481	239	130	.648	2.06	1,375	271	55	2,708	725	1,044	43	673	61	138		12,422	61	3.90	1.91	2.04	0.12	11.1	5.4	1.07	.259	2.96	2.42	83	7.68	161.9
18	Jesse Crain J. Crain	71	532.0	4	0	532	45	30	.600	3.05	440	0	0	449	180	205	44	206	18	116	27	2,221	14	7.44	3.48	2.14	0.74	19.8	9.3	1.23	.268	3.47	3.76	89	7.60	27.6
19	Rafael Soriano R. Soriano	71	636.1	207	8	591	24	28	.462	2.89	641	0	0	489	204	213	62	197	15	343	20	2,571	13	9.07	2.79	3.25	0.88	24.9	7.7	1.08	.258	3.01	3.34	81	6.92	58.6
20	Chris Sale C. Sale	71	2047.2	12	307	387	143	87	.622	3.02	2,528	16	3	1,668	686	739	209	481	126	25	15	8,249	47	11.11	2.11	5.26	0.92	30.6	5.8	1.05	.297	3.25	2.88	69	7.33	297.2
21	Shohei Ohtani S. Ohtani	71	505.0	0	95	95	38	19	.667	3.03	640	1	1	369	170	178	55	178	24	0	2	2,047	48	11.41	3.17	3.60	0.98	31.3	8.7	1.08	.273	3.17	3.24	76	6.58	55.4
22	Brandon Woodruff B. Woodruff	71	719.2	1	122	137	50	26	.658	3.04	837	2	1	556	243	252	82	184	30	4	1	2,874	8	10.47	2.30	4.55	1.03	29.1	6.4	1.03	.272	3.15	3.21	75	6.95	84
23	Armando Benitez A. Benitez	72	779.0	289	0	762	40	47	.460	3.13	946	0	0	545	271	296	95	403	16	527	32	3,253	18	10.93	4.66	2.35	1.10	29.1	12.4	1.22	.251	3.42	3.86	88	6.30	48.8
24	Mark Eichhorn M. Eichhorn	72	885.2	32	7	563	48	43	.527	3.00	640	0	0	825	295	328	49	270	40	226	63	3,702	25	6.50	2.74	2.37	0.50	17.3	7.3	1.24	.287	3.33	3.17	76	8.38	100.3
25	Brandon Webb B. Webb	72	1319.2	0	198	199	87	62	.584	3.27	1,065	15	8	1,200	479	557	92	435	50	1	34	5,515	56	7.26	2.97	2.45	0.63	19.3	7.9	1.24	.286	3.80	3.49	78	8.18	146.6