Mariano Rivera played the most seasons with 30+ saves, with 15 seasons.

Interpreted as:

Most career seasons by a player of 30+ saves

	NAME	SEAS	SV	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	ERA-	FIP	FIP-	H/9	PRAA
1	Mariano Rivera M. Rivera	15	614	981	67	49	.578	0	1.99	943	0	0	1054.2	813	233	254	56	209	40	890	34	4,158	11	8.05	1.78	4.51	0.48	22.7	5.0	0.97	.260	2.17	45	2.70	60	6.94	205
2	Trevor Hoffman T. Hoffman	14	566	862	51	58	.468	0	2.63	945	0	0	887.0	671	259	286	77	226	8	746	36	3,531	39	9.59	2.29	4.18	0.78	26.8	6.4	1.01	.261	2.90	65	2.89	68	6.81	136.6
3	Lee Smith L. Smith	10	370	619	47	60	.439	0	3.07	746	0	0	749.1	670	256	270	58	259	2	545	52	3,119	23	8.96	3.11	2.88	0.70	23.9	8.3	1.24	.298	3.24	77	2.89	73	8.05	88.6
4	Joe Nathan J. Nathan	9	361	607	36	23	.610	0	2.20	723	0	0	605.2	422	148	157	41	184	12	538	22	2,402	32	10.74	2.73	3.93	0.61	30.1	7.7	1.00	.264	2.33	52	2.56	61	6.27	113
5	Billy Wagner B. Wagner	9	336	618	31	24	.564	0	2.09	858	0	0	646.0	425	150	166	55	198	23	541	22	2,552	28	11.95	2.76	4.33	0.77	33.6	7.8	0.96	.261	2.31	49	2.55	59	5.92	127
6	Kenley Jansen K. Jansen	8	318	524	27	20	.574	0	2.57	727	0	0	522.1	353	149	161	54	136	16	443	12	2,067	12	12.53	2.34	5.35	0.93	35.2	6.6	0.94	.264	2.77	65	2.58	64	6.08	86.5
7	Aroldis Chapman A. Chapman	8	280	490	29	24	.547	0	2.13	821	0	0	478.1	266	113	124	31	220	23	399	3	1,926	51	15.45	4.14	3.73	0.58	42.6	11.4	1.02	.283	2.33	52	2.06	49	5.00	108.3
8	Craig Kimbrel C. Kimbrel	8	332	521	27	19	.587	0	1.97	828	0	0	512.0	276	112	120	35	189	19	442	4	1,999	40	14.55	3.32	4.38	0.62	41.4	9.5	0.91	.260	2.11	49	1.98	50	4.85	111.9
9	Jonathan Papelbon J. Papelbon	8	296	515	27	27	.500	0	2.29	630	0	0	531.2	390	135	152	37	131	23	446	10	2,124	10	10.66	2.22	4.81	0.63	29.7	6.2	0.98	.271	2.57	54	2.51	61	6.60	96.8
10	Francisco Rodriguez F. Rodriguez	8	355	535	23	31	.426	0	2.70	616	0	0	527.1	384	158	175	53	216	7	483	21	2,162	39	10.51	3.69	2.85	0.90	28.5	10.0	1.14	.261	2.99	65	3.36	81	6.55	50.1
11	Troy Percival T. Percival	8	286	462	21	31	.404	0	3.11	514	0	0	460.2	316	159	174	51	205	18	404	18	1,904	19	10.04	4.01	2.51	1.00	27.0	10.8	1.13	.237	3.40	66	3.74	81	6.17	45.2
12	John Wetteland J. Wetteland	8	304	507	36	27	.571	0	2.68	595	0	0	546.2	440	163	189	54	177	8	463	19	2,247	15	9.80	2.91	3.36	0.89	26.5	7.9	1.13	.273	3.11	60	3.17	71	7.24	77.1
13	Dennis Eckersley D. Eckersley	8	322	494	27	24	.529	0	2.53	552	0	0	539.2	428	152	164	52	65	12	436	18	2,100	3	9.21	1.08	8.49	0.87	26.3	3.1	0.91	.265	2.74	64	2.52	63	7.14	88.5
14	John Franco J. Franco	8	270	472	34	46	.425	0	2.65	422	0	0	546.1	502	161	194	27	197	7	417	32	2,308	27	6.95	3.25	2.14	0.44	18.3	8.5	1.28	.287	3.20	69	3.12	79	8.27	49.1
15	Francisco Cordero F. Cordero	7	280	485	24	27	.471	0	2.90	481	0	0	483.1	409	156	171	29	206	14	430	11	2,040	17	8.96	3.84	2.33	0.54	23.6	10.1	1.27	.290	3.18	67	3.24	75	7.62	58.7
16	Jason Isringhausen J. Isringhausen	7	250	450	26	21	.553	0	2.85	427	0	0	463.2	354	147	167	34	189	12	385	26	1,931	16	8.29	3.67	2.26	0.66	22.1	9.8	1.17	.252	3.24	66	3.49	79	6.87	46.2
17	Robb Nen R. Nen	7	276	513	38	29	.567	0	2.56	626	0	0	535.1	436	152	175	33	174	6	462	36	2,204	25	10.52	2.93	3.60	0.55	28.4	7.9	1.14	.295	2.94	61	2.56	60	7.33	103.3
18	Jeff Reardon J. Reardon	7	250	433	30	39	.435	0	3.55	402	0	0	520.1	478	205	211	62	132	13	376	19	2,150	5	6.95	2.28	3.05	1.07	18.7	6.1	1.17	.270	3.65	89	3.61	92	8.27	17.9
19	Todd Jones T. Jones	6	218	393	15	27	.357	0	3.41	324	0	0	398.2	386	151	166	25	143	9	338	15	1,685	18	7.31	3.23	2.27	0.56	19.2	8.5	1.33	.305	3.75	74	3.45	75	8.71	49.5
20	Jose Mesa J. Mesa	6	248	414	20	24	.455	0	3.09	324	0	0	419.1	410	144	161	35	164	14	365	22	1,796	28	6.95	3.52	1.98	0.75	18.0	9.1	1.37	.298	3.46	69	3.88	86	8.80	28.3
21	Roberto Hernandez R. Hernandez	6	214	416	28	29	.491	0	2.74	452	0	0	450.1	405	137	156	34	180	11	359	17	1,917	17	9.03	3.60	2.51	0.68	23.6	9.4	1.30	.299	3.12	59	3.34	73	8.09	63.3
22	Rick Aguilera R. Aguilera	6	219	368	22	29	.431	0	3.01	342	0	0	403.0	340	135	151	38	108	9	351	21	1,633	13	7.64	2.41	3.17	0.85	20.9	6.6	1.11	.266	3.37	68	3.34	79	7.59	39.1
23	Randy Myers R. Myers	6	236	385	16	25	.390	0	3.05	439	0	0	415.2	364	141	149	36	177	6	339	20	1,757	16	9.51	3.83	2.48	0.78	25.0	10.1	1.30	.298	3.23	75	3.30	80	7.88	40.6
24	Tom Henke T. Henke	6	208	357	11	20	.355	0	2.37	429	0	0	403.1	290	106	113	36	122	2	320	12	1,601	20	9.57	2.72	3.52	0.80	26.8	7.6	1.02	.251	2.52	56	2.84	68	6.47	60.3
25	Todd Worrell T. Worrell	6	212	413	32	38	.457	0	2.89	431	0	0	475.2	421	153	172	45	166	5	343	45	1,990	15	8.15	3.14	2.60	0.85	21.7	8.3	1.23	.280	3.25	76	3.42	89	7.97	23.6