Kenley Jansen has the most career saves by an active relief pitcher, with 475 saves.

Interpreted as:

active relievers with the most regular-season saves

	NAME	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	H/9
1	Kenley Jansen K. Jansen	475	934	54	40	.574	0	2.57	1,278	0	0	927.1	610	265	284	88	282	32	700	20	3,680	21	12.40	2.74	4.53	0.85	34.7	7.7	0.96	.261	2.76	5.92
2	Craig Kimbrel C. Kimbrel	440	851	56	48	.538	0	2.58	1,282	0	0	821.2	492	236	263	75	346	40	656	11	3,306	70	14.04	3.79	3.71	0.82	38.8	10.5	1.02	.267	2.88	5.39
3	Aroldis Chapman A. Chapman	367	863	60	47	.561	0	2.52	1,331	0	0	821.1	475	230	255	54	408	33	563	7	3,341	87	14.58	4.47	3.26	0.59	39.8	12.2	1.08	.278	2.79	5.20
4	Edwin Díaz E. Díaz	253	520	28	36	.438	0	2.82	839	0	0	519.1	356	163	176	54	182	40	395	9	2,105	33	14.54	3.15	4.61	0.94	39.9	8.6	1.04	.305	3.05	6.17
5	Raisel Iglesias R. Iglesias	253	579	38	47	.447	0	2.74	738	0	0	615.1	462	187	212	68	168	20	459	17	2,461	16	10.79	2.46	4.39	0.99	30.0	6.8	1.02	.269	3.10	6.76
6	Josh Hader J. Hader	226	468	34	31	.523	0	2.64	829	0	0	512.1	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	4.95
7	David Robertson D. Robertson	179	880	68	46	.596	0	2.93	1,175	0	0	893.1	674	291	315	81	364	25	358	38	3,687	57	11.84	3.67	3.23	0.82	31.9	9.9	1.16	.290	3.17	6.79
8	Carlos Estévez C. Estévez	124	505	31	36	.463	0	3.97	494	0	0	485.1	455	214	241	59	183	23	249	23	2,086	24	9.16	3.39	2.70	1.09	23.7	8.8	1.31	.298	4.47	8.44
9	Liam Hendriks L. Hendriks	116	446	30	21	.588	0	3.16	628	0	0	482.0	408	169	190	49	111	9	218	13	1,953	36	11.73	2.07	5.66	0.91	32.2	5.7	1.08	.311	3.55	7.62
10	Jordan Romano J. Romano	113	280	22	21	.512	0	3.73	332	0	0	272.1	219	113	122	37	105	15	177	11	1,140	2	10.97	3.47	3.16	1.22	29.1	9.2	1.19	.280	4.03	7.24
11	Kyle Finnegan K. Finnegan	112	347	26	30	.464	0	3.55	343	0	0	347.1	311	137	165	44	135	5	194	16	1,457	18	8.89	3.50	2.54	1.14	23.5	9.3	1.28	.287	4.28	8.06
12	David Bednar D. Bednar	111	315	18	23	.439	0	3.15	389	0	0	317.1	256	111	128	29	110	9	218	13	1,317	11	11.03	3.12	3.54	0.82	29.5	8.4	1.15	.291	3.63	7.26
13	Camilo Doval C. Doval	106	297	26	19	.578	0	3.39	354	0	0	286.2	229	108	138	20	139	17	197	13	1,225	27	11.11	4.36	2.55	0.63	28.9	11.3	1.28	.301	4.33	7.19
14	Ryan Helsley R. Helsley	105	297	31	18	.633	0	2.96	377	0	0	319.2	243	105	118	30	132	3	171	13	1,314	21	10.61	3.72	2.86	0.84	28.7	10.0	1.17	.276	3.32	6.84
15	Kirby Yates K. Yates	98	472	30	24	.556	0	3.36	623	0	0	452.2	332	169	183	63	181	29	211	13	1,883	18	12.39	3.60	3.44	1.25	33.1	9.6	1.13	.273	3.64	6.60
16	Jhoan Duran J. Duran	90	246	18	25	.419	0	2.44	319	0	0	254.1	202	69	89	19	75	17	151	14	1,036	18	11.29	2.65	4.25	0.67	30.8	7.2	1.09	.302	3.15	7.15
17	Pete Fairbanks P. Fairbanks	90	273	20	24	.455	0	3.22	328	0	0	262.2	207	94	110	24	102	8	153	3	1,096	21	11.24	3.49	3.22	0.82	29.9	9.3	1.18	.289	3.77	7.09
18	Devin Williams D. Williams	86	308	31	16	.660	0	2.45	465	0	0	297.2	174	81	100	20	137	15	126	4	1,211	17	14.06	4.14	3.39	0.60	38.4	11.3	1.04	.268	3.02	5.26
19	Blake Treinen B. Treinen	82	524	44	38	.537	0	2.90	580	0	0	540.1	451	174	198	42	212	19	197	25	2,236	24	9.66	3.53	2.74	0.70	25.9	9.5	1.23	.296	3.30	7.51
20	Andrés Muñoz A. Muñoz	78	263	12	23	.343	0	2.43	354	0	0	259.1	166	70	84	17	104	16	124	12	1,046	19	12.29	3.61	3.40	0.59	33.8	9.9	1.04	.268	2.92	5.76
21	Tanner Scott T. Scott	78	444	32	28	.533	0	3.72	546	0	0	425.2	352	176	200	39	220	25	167	14	1,836	29	11.54	4.65	2.48	0.82	29.7	12.0	1.34	.311	4.23	7.44
22	Robert Suarez R. Suarez	77	206	22	13	.629	0	2.91	219	0	0	210.0	143	68	71	21	63	6	122	6	826	4	9.39	2.70	3.48	0.90	26.5	7.6	0.98	.236	3.04	6.13
23	Clay Holmes C. Holmes	74	309	23	20	.535	0	3.47	351	0	0	327.0	270	126	148	18	140	30	154	6	1,403	27	9.66	3.85	2.51	0.50	25.0	10.0	1.25	.292	4.07	7.43
24	Félix Bautista F. Bautista	67	156	13	7	.650	0	2.01	248	0	0	161.1	84	36	42	14	72	3	104	1	632	10	13.83	4.02	3.44	0.78	39.2	11.4	0.97	.237	2.34	4.69
25	Emilio Pagán E. Pagán	65	475	28	27	.509	0	3.68	580	0	0	503.2	393	206	223	85	147	11	173	6	2,041	13	10.36	2.63	3.95	1.52	28.4	7.2	1.07	.253	3.98	7.02