Craig Kimbrel has the most saves by a rookie, with 46 saves in 2011.

Interpreted as:

most regular-season sv by a rookie in MLB history

	NAME	SV	SEASON	TM	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	Craig Kimbrel C. Kimbrel	46	2011	ATL	79	4	3	.571	0	2.10	127	0	0	77.0	48	18	19	3	32	1	64	1	306	4	14.84	3.74	3.97	0.35	41.5	10.5	1.04	.315	2.22	56	1.51	40	5.61	19.6
2	Bobby Jenks B. Jenks	41	2006	CWS	67	3	4	.429	0	4.00	80	0	0	69.2	66	31	32	5	31	2	58	10	300	3	10.33	4.00	2.58	0.65	26.7	10.3	1.39	.335	4.13	85	3.20	67	8.53	11.5
3	Neftali Feliz N. Feliz	40	2010	TEX	70	4	3	.571	0	2.73	71	0	0	69.1	43	21	21	5	18	5	59	1	269	5	9.22	2.34	3.94	0.65	26.4	6.7	0.88	.224	2.73	62	2.96	68	5.58	10.3
4	Kazuhiro Sasaki K. Sasaki	37	2000	SEA	63	2	5	.286	0	3.16	78	0	0	62.2	42	22	25	10	31	2	58	5	265	1	11.20	4.45	2.52	1.44	29.4	11.7	1.16	.222	3.59	67	4.29	91	6.03	3
5	Todd Worrell T. Worrell	36	1986	STL	74	9	10	.474	0	2.08	73	0	0	103.2	86	24	29	9	41	1	60	16	430	1	6.34	3.56	1.78	0.78	17.0	9.5	1.23	.252	2.52	57	3.70	102	7.47	-1
6	Jonathan Papelbon J. Papelbon	35	2006	BOS	59	4	2	.667	0	0.92	75	0	0	68.1	40	7	8	3	13	1	49	2	257	2	9.88	1.71	5.77	0.40	29.2	5.1	0.78	.224	1.05	20	2.13	48	5.27	17.7
7	Jordan Walden J. Walden	32	2011	LAA	62	5	5	.500	0	2.98	67	0	0	60.1	49	20	22	3	26	1	42	3	253	6	9.99	3.88	2.58	0.45	26.5	10.3	1.24	.295	3.28	76	2.79	70	7.31	8
8	Billy Koch B. Koch	31	1999	TOR	56	0	5	.000	0	3.39	57	0	0	63.2	55	24	26	5	30	3	48	5	272	0	8.06	4.24	1.90	0.71	21.0	11.0	1.34	.282	3.68	69	3.91	82	7.77	5.9
9	Kerry Ligtenberg K. Ligtenberg	30	1998	ATL	75	3	2	.600	0	2.71	79	0	0	73.0	51	22	24	6	24	0	56	1	290	3	9.74	2.96	3.29	0.74	27.2	8.3	1.03	.249	2.96	65	3.02	71	6.29	10.1
10	Addison Reed A. Reed	29	2012	CWS	62	3	2	.600	0	4.75	54	0	0	55.0	57	29	30	6	18	2	44	3	238	0	8.84	2.95	3.00	0.98	22.7	7.6	1.36	.323	4.91	112	3.63	85	9.33	4
11	Tom Wilhelmsen T. Wilhelmsen	29	2012	SEA	73	4	3	.571	0	2.50	87	0	0	79.1	59	22	24	5	29	2	48	3	326	3	9.87	3.29	3.00	0.57	26.7	8.9	1.11	.266	2.72	65	2.88	72	6.69	10.1
12	Rich Loiselle R. Loiselle	29	1997	PIT	72	1	5	.167	0	3.10	66	0	0	72.2	76	25	29	7	24	1	58	3	312	4	8.17	2.97	2.75	0.87	21.2	7.7	1.38	.322	3.59	72	3.57	84	9.41	5.4
13	Doug Henry D. Henry	29	1992	MIL	68	1	4	.200	0	4.02	52	0	0	65.0	64	29	34	6	24	0	56	4	277	4	7.20	3.32	2.17	0.83	18.8	8.7	1.35	.297	4.71	103	3.48	89	8.86	3
14	Mason Miller M. Miller	28	2024	OAK	55	2	2	.500	0	2.49	104	0	0	65.0	36	18	23	6	21	1	44	3	249	2	14.40	2.91	4.95	0.83	41.8	8.4	0.88	.256	3.18	65	2.17	55	4.98	13.2
15	Jim Henderson J. Henderson	28	2013	MIL	61	5	5	.500	0	2.70	75	0	0	60.0	44	18	18	8	24	2	45	2	247	0	11.25	3.60	3.13	1.20	30.4	9.7	1.13	.261	2.70	70	3.58	91	6.60	2.2
16	Camilo Doval C. Doval	27	2022	SFG	68	6	6	.500	0	2.53	80	0	0	67.2	54	19	27	4	30	3	51	2	286	4	10.64	3.99	2.67	0.53	28.0	10.5	1.24	.296	3.59	65	2.97	78	7.18	6.6
17	Mike MacDougal M. MacDougal	27	2003	KCR	68	3	5	.375	0	4.08	57	0	0	64.0	64	29	36	4	32	8	61	0	285	6	8.02	4.50	1.78	0.56	20.0	11.2	1.50	.326	5.06	86	3.93	86	9.00	4.4
18	Gregg Olson G. Olson	27	1989	BAL	64	5	2	.714	0	1.69	90	0	0	85.0	57	16	17	1	46	1	52	10	356	9	9.53	4.87	1.96	0.11	25.3	12.9	1.21	.257	1.80	45	2.45	65	6.04	12.7
19	Andrew Bailey A. Bailey	26	2009	OAK	68	6	3	.667	0	1.84	91	0	0	83.1	49	17	17	5	24	0	54	3	323	6	9.83	2.59	3.79	0.54	28.2	7.4	0.88	.217	1.84	43	2.55	59	5.29	16.7
20	Lance Carter L. Carter	26	2003	TBD	62	7	5	.583	0	4.33	47	0	0	79.0	72	38	39	12	19	4	55	6	328	0	5.35	2.16	2.47	1.37	14.3	5.8	1.15	.244	4.44	97	4.68	106	8.20	-2.4
21	Jorge Julio J. Julio	25	2002	BAL	67	5	6	.455	0	1.99	55	0	0	68.0	55	15	22	5	27	2	61	3	289	8	7.28	3.57	2.04	0.66	19.0	9.3	1.21	.250	2.91	46	3.57	81	7.28	6.3
22	Pete Ladd P. Ladd	25	1983	MIL	44	3	4	.429	0	2.55	41	0	0	49.1	30	14	17	3	16	1	40	2	194	3	7.48	2.92	2.56	0.55	21.1	8.2	0.93	.203	3.10	66	2.90	76	5.47	5.2
23	Emmanuel Clase E. Clase	24	2021	CLE	71	4	5	.444	0	1.29	74	0	0	69.2	51	10	18	2	16	0	51	3	279	3	9.56	2.07	4.63	0.26	26.5	5.7	0.96	.262	2.33	31	2.10	50	6.59	16.5
24	Fernando Salas F. Salas	24	2011	STL	68	5	6	.455	0	2.28	75	0	0	75.0	50	19	20	7	21	2	46	3	295	2	9.00	2.52	3.57	0.84	25.4	7.1	0.95	.226	2.40	62	3.15	85	6.00	4.9
25	John Axford J. Axford	24	2010	MIL	50	8	2	.800	0	2.48	76	0	0	58.0	42	16	17	1	27	1	43	3	238	4	11.79	4.19	2.81	0.16	31.9	11.3	1.19	.308	2.64	62	2.12	52	6.52	12.3