best closer season by era- minumum 20 saves

Mariano Rivera has the most career saves with an ERA- of 20 or worse, with 652 saves.

Interpreted as:

best closer season by era- minumum 20 or higher regular-season saves by a player

	NAME	SV	ERA-	G	W	L	W%	GS	ERA	SO	CG	SHO	IP	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	Mariano Rivera M. Rivera	652	45	1,096	77	57	.575	0	2.03	1,122	0	0	1216.2	927	274	297	60	256	44	950	41	4,802	13	8.30	1.89	4.38	0.44	23.4	5.3	0.97	.261	2.20	2.63	59	6.86	250.6
2	Trevor Hoffman T. Hoffman	601	71	1,026	61	75	.449	0	2.87	1,122	0	0	1080.1	839	345	376	99	304	9	849	58	4,352	49	9.35	2.53	3.69	0.82	25.8	7.0	1.06	.263	3.13	3.07	73	6.99	142
3	Lee Smith L. Smith	478	76	1,004	69	92	.429	6	3.03	1,234	0	0	1267.2	1,112	427	466	89	472	10	796	95	5,291	47	8.76	3.35	2.61	0.63	23.3	8.9	1.25	.293	3.31	2.92	74	7.89	140.5
4	Kenley Jansen K. Jansen	469	65	921	53	38	.582	0	2.58	1,266	0	0	914.1	606	262	281	87	276	31	689	20	3,631	21	12.46	2.72	4.59	0.86	34.9	7.6	0.96	.263	2.77	2.60	64	5.97	146.7
5	Craig Kimbrel C. Kimbrel	440	63	837	56	47	.544	0	2.59	1,265	0	0	809.2	482	233	259	73	339	40	651	11	3,257	70	14.06	3.77	3.73	0.81	38.8	10.4	1.01	.266	2.88	2.58	63	5.36	131.9
6	Francisco Rodriguez F. Rodriguez	437	69	943	52	53	.495	0	2.88	1,129	0	0	970.1	735	310	336	98	387	16	673	41	3,990	68	10.47	3.59	2.92	0.91	28.3	9.7	1.16	.270	3.12	3.32	80	6.82	94.2
7	John Franco J. Franco	424	70	1,036	88	79	.527	0	2.74	923	0	0	1184.2	1,097	361	425	75	462	20	754	74	5,028	52	7.01	3.51	2.00	0.57	18.4	9.2	1.32	.288	3.23	3.39	85	8.33	76.3
8	Billy Wagner B. Wagner	422	55	835	46	39	.541	0	2.32	1,170	0	0	887.0	593	229	257	81	292	32	701	26	3,536	42	11.87	2.96	4.01	0.82	33.1	8.3	1.00	.261	2.61	2.73	63	6.02	155.4
9	Dennis Eckersley D. Eckersley	390	76	765	72	62	.537	56	2.99	1,126	15	5	1175.2	977	390	424	108	282	31	577	36	4,751	14	8.62	2.16	3.99	0.83	23.7	5.9	1.07	.271	3.25	2.89	72	7.48	146.6
10	Joe Nathan J. Nathan	377	61	675	45	28	.616	14	2.60	821	0	0	741.0	544	214	228	65	244	16	574	24	2,989	37	9.97	2.96	3.36	0.79	27.5	8.2	1.06	.260	2.77	3.07	72	6.61	98
11	Jonathan Papelbon J. Papelbon	368	58	672	38	35	.521	0	2.43	774	0	0	691.2	539	187	215	53	168	31	581	16	2,790	13	10.07	2.19	4.61	0.69	27.7	6.0	1.02	.276	2.80	2.73	67	7.01	105.5
12	Jeff Reardon J. Reardon	367	82	880	73	77	.487	0	3.16	877	0	0	1132.1	1,000	397	426	109	358	27	695	65	4,720	20	6.97	2.85	2.45	0.87	18.6	7.6	1.20	.266	3.39	3.49	92	7.95	38.7
13	Troy Percival T. Percival	358	71	669	32	43	.427	0	3.26	745	0	0	668.2	455	242	263	82	296	27	537	25	2,765	30	10.03	3.98	2.52	1.10	26.9	10.7	1.12	.231	3.54	3.90	85	6.12	51.3
14	Aroldis Chapman A. Chapman	357	62	833	57	44	.564	0	2.55	1,293	0	0	793.2	459	225	249	54	401	33	547	7	3,237	82	14.66	4.55	3.22	0.61	39.9	12.4	1.08	.278	2.82	2.40	58	5.20	152.6
15	Randy Myers R. Myers	347	81	717	44	63	.411	12	3.19	869	1	0	872.0	747	309	333	68	386	11	542	42	3,684	32	8.97	3.98	2.25	0.70	23.6	10.5	1.30	.289	3.44	3.31	82	7.71	69.4
16	Rollie Fingers R. Fingers	341	83	943	114	118	.491	37	2.89	1,299	4	2	1700.0	1,470	545	611	122	491	38	709	109	6,933	39	6.88	2.60	2.65	0.65	18.7	7.1	1.15	.271	3.23	2.94	81	7.78	127.5
17	John Wetteland J. Wetteland	330	68	590	45	41	.523	12	2.85	759	0	0	713.0	567	226	257	67	232	11	513	27	2,919	31	9.58	2.93	3.27	0.85	26.0	7.9	1.12	.270	3.24	3.13	73	7.16	92.1
18	Francisco Cordero F. Cordero	329	72	721	44	48	.478	0	3.17	727	0	0	726.0	642	256	283	51	307	23	556	24	3,083	28	9.01	3.81	2.37	0.63	23.6	10.0	1.31	.299	3.51	3.35	77	7.96	83.4
19	Fernando Rodney F. Rodney	327	90	931	47	68	.409	0	3.76	933	0	0	915.0	792	382	418	71	454	52	580	36	3,975	65	9.18	4.47	2.06	0.70	23.5	11.4	1.36	.292	4.11	3.74	89	7.79	45.1
20	Roberto Hernandez R. Hernandez	326	68	822	55	60	.478	0	3.08	819	0	0	893.1	798	306	348	71	358	28	623	40	3,800	39	8.25	3.61	2.29	0.72	21.6	9.4	1.29	.288	3.51	3.56	79	8.04	93.4
21	Huston Street H. Street	324	71	664	42	34	.553	0	2.97	662	0	0	676.0	540	223	237	70	182	8	523	37	2,703	20	8.81	2.42	3.64	0.93	24.5	6.7	1.07	.264	3.16	3.33	81	7.19	60.8
22	Jose Mesa J. Mesa	321	88	924	53	69	.434	0	3.97	753	0	0	977.2	1,002	431	474	96	415	40	632	50	4,296	57	6.93	3.82	1.81	0.88	17.5	9.7	1.45	.303	4.36	4.23	94	9.22	30.8
23	Todd Jones T. Jones	319	85	923	55	58	.487	0	3.76	809	0	0	1003.1	979	419	460	83	412	37	605	60	4,324	43	7.26	3.70	1.96	0.74	18.7	9.5	1.39	.300	4.13	3.89	89	8.78	55.5
24	Rick Aguilera R. Aguilera	318	73	635	47	54	.465	11	3.19	676	3	0	776.1	693	275	307	81	208	20	552	34	3,190	27	7.84	2.41	3.25	0.94	21.2	6.5	1.16	.278	3.56	3.45	81	8.03	68.1
25	Robb Nen R. Nen	314	64	619	43	41	.512	0	2.66	754	0	0	659.0	544	195	221	45	214	7	544	41	2,711	30	10.30	2.92	3.52	0.61	27.8	7.9	1.15	.295	3.02	2.70	63	7.43	116.3