Mariano Rivera has the most career saves in the postseason, with 42 saves.

Interpreted as:

most playoff saves by a player in MLB history

	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	Mariano Rivera M. Rivera	42	96	8	1	.889	0	0.70	110	0	0	141.0	86	11	13	2	21	3	78	4	527	3	7.02	1.34	5.24	0.13	20.9	4.0	0.76	.215	0.83	5.49
2	Kenley Jansen K. Jansen	20	59	3	2	.600	0	2.20	94	0	0	65.1	34	16	18	7	18	3	47	3	250	0	12.95	2.48	5.22	0.96	37.6	7.2	0.80	.211	2.48	4.68
3	Brad Lidge B. Lidge	18	39	2	4	.333	0	2.18	62	0	0	45.1	32	11	11	2	19	3	32	2	185	3	12.31	3.77	3.26	0.40	33.5	10.3	1.13	.303	2.18	6.35
4	Dennis Eckersley D. Eckersley	15	28	1	3	.250	1	3.00	22	0	0	36.0	35	12	12	3	3	0	26	0	141	0	5.50	0.75	7.33	0.75	15.6	2.1	1.06	.283	3.00	8.75
5	Ryan Pressly R. Pressly	14	47	3	1	.750	0	2.78	60	0	0	45.1	34	14	16	1	15	3	27	1	186	7	11.91	2.98	4.00	0.20	32.3	8.1	1.08	.308	3.18	6.75
6	Jason Isringhausen J. Isringhausen	11	23	1	1	.500	0	2.36	23	0	0	26.2	17	7	8	2	12	1	22	4	110	0	7.76	4.05	1.92	0.68	20.9	10.9	1.09	.208	2.70	5.74
7	Robb Nen R. Nen	11	20	1	0	1.000	0	2.25	20	0	0	20.0	20	5	7	0	8	0	17	1	88	2	9.00	3.60	2.50	0.00	22.7	9.1	1.40	.333	3.15	9.00
8	Aroldis Chapman A. Chapman	10	44	3	4	.429	0	2.37	68	0	0	49.1	35	13	16	4	21	3	27	1	202	3	12.41	3.83	3.24	0.73	33.7	10.4	1.14	.292	2.92	6.39
9	Craig Kimbrel C. Kimbrel	10	30	0	3	.000	0	4.50	32	0	0	30.0	23	15	17	4	20	4	19	0	132	3	9.60	6.00	1.60	1.20	24.2	15.2	1.43	.264	5.10	6.90
10	Mark Wohlers M. Wohlers	9	39	1	2	.333	0	2.35	44	0	0	38.1	33	10	12	5	17	0	25	6	164	2	10.33	3.99	2.59	1.17	26.8	10.4	1.30	.286	2.82	7.75
11	Rollie Fingers R. Fingers	9	30	4	4	.500	0	2.35	45	0	0	57.1	50	15	20	5	17	3	21	4	232	1	7.06	2.67	2.65	0.78	19.4	7.3	1.17	.278	3.14	7.85
12	Trevor Rosenthal T. Rosenthal	8	27	1	0	1.000	0	2.40	48	0	0	30.0	20	8	8	1	16	1	19	3	125	1	14.40	4.80	3.00	0.30	38.4	12.8	1.20	.322	2.40	6.00
13	Wade Davis W. Davis	8	30	4	0	1.000	1	1.80	57	0	0	40.0	29	8	9	5	18	0	14	0	160	2	12.83	4.05	3.17	1.13	35.6	11.3	1.18	.300	2.03	6.53
14	Jason Motte J. Motte	8	19	1	1	.500	0	2.08	10	0	0	21.2	12	5	6	2	2	0	16	0	79	0	4.15	0.83	5.00	0.83	12.7	2.5	0.65	.154	2.49	4.98
15	Randy Myers R. Myers	8	29	2	2	.500	0	2.35	32	0	0	30.2	18	8	8	1	14	0	20	0	121	1	9.39	4.11	2.29	0.29	26.4	11.6	1.04	.230	2.35	5.28
16	Rich Gossage R. Gossage	8	19	2	1	.667	0	2.87	29	0	0	31.1	21	10	10	3	7	2	17	1	124	0	8.33	2.01	4.14	0.86	23.4	5.6	0.89	.217	2.87	6.03
17	Tug McGraw T. McGraw	8	26	3	3	.500	0	2.24	48	0	0	52.1	38	13	15	1	33	1	19	9	223	3	8.25	5.68	1.45	0.17	21.5	14.8	1.36	.264	2.58	6.54
18	Greg Holland G. Holland	7	12	0	0		0	2.31	15	0	0	11.2	7	3	3	0	6	0	11	2	49	1	11.57	4.63	2.50	0.00	30.6	12.2	1.11	.250	2.31	5.40
19	Cody Allen C. Allen	7	17	0	0		0	3.10	35	0	0	20.1	18	7	9	2	10	1	9	3	91	1	15.49	4.43	3.50	0.89	38.5	11.0	1.38	.372	3.98	7.97
20	Koji Uehara K. Uehara	7	19	1	1	.500	0	3.00	21	0	0	18.0	13	6	6	4	2	0	14	0	66	0	10.50	1.00	10.50	2.00	31.8	3.0	0.83	.231	3.00	6.50
21	Neftali Feliz N. Feliz	7	18	0	0		0	1.93	23	0	0	18.2	8	4	4	1	13	1	15	1	76	1	11.09	6.27	1.77	0.48	30.3	17.1	1.13	.184	1.93	3.86
22	Jonathan Papelbon J. Papelbon	7	18	2	1	.667	0	1.00	23	0	0	27.0	14	3	3	0	8	0	12	3	100	0	7.67	2.67	2.88	0.00	23.0	8.0	0.81	.203	1.00	4.67
23	Troy Percival T. Percival	7	9	0	0		0	2.79	10	0	0	9.2	8	3	3	1	1	1	9	0	39	0	9.31	0.93	10.00	0.93	25.6	2.6	0.93	.269	2.79	7.45
24	John Wetteland J. Wetteland	7	17	0	1	.000	0	4.82	22	0	0	18.2	16	10	10	3	9	1	13	2	83	0	10.61	4.34	2.44	1.45	26.5	10.8	1.34	.271	4.82	7.71
25	Will Smith W. Smith	6	25	4	2	.667	0	2.91	20	0	0	21.2	11	7	8	2	9	1	11	0	84	0	8.31	3.74	2.22	0.83	23.8	10.7	0.92	.173	3.32	4.57