Kazuhiro Sasaki had the most saves by a pitcher in his first season, with 37 saves in his rookie season in 2000.

Interpreted as:

most saves by a player in first year

	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	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
2	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
3	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
4	Takashi Saito T. Saito	24	2006	LAD	72	6	2	.750	0	2.07	107	0	0	78.1	48	18	19	3	23	2	48	3	303	2	12.29	2.64	4.65	0.34	35.3	7.6	0.91	.268	2.18	47	1.86	42	5.51	23
5	Dick Radatz D. Radatz	24	1962	BOS	62	9	6	.600	0	2.24	144	0	0	124.2	95	31	32	9	40	4	53	2	506	4	10.40	2.89	3.60	0.65	28.5	7.9	1.08	.278	2.31	54	2.30	54	6.86	26
6	Huston Street H. Street	23	2005	OAK	67	5	1	.833	0	1.72	72	0	0	78.1	53	15	17	3	26	2	47	4	306	1	8.27	2.99	2.77	0.34	23.5	8.5	1.01	.246	1.95	41	2.74	63	6.09	13.7
7	Doug Corbett D. Corbett	23	1980	MIN	73	8	6	.571	0	1.98	89	0	0	136.1	102	30	31	7	42	1	63	8	531	3	5.88	2.77	2.12	0.46	16.8	7.9	1.06	.242	2.05	48	3.05	76	6.73	14.8
8	Ken Tatum K. Tatum	22	1969	CAL	45	7	2	.778	0	1.36	65	0	0	86.1	51	13	13	1	39	4	33	5	342	5	6.78	4.07	1.67	0.10	19.0	11.4	1.04	.215	1.36	39	2.64	73	5.32	9.6
9	Javy Guerra J. Guerra	21	2011	LAD	47	2	2	.500	0	2.31	38	0	0	46.2	37	12	12	2	18	3	38	1	195	2	7.33	3.47	2.11	0.39	19.5	9.2	1.18	.261	2.31	64	3.30	87	7.14	2.6
10	Salome Barojas S. Barojas	21	1982	CWS	61	6	6	.500	0	3.54	56	0	0	106.2	96	42	43	9	46	1	42	6	446	4	4.72	3.88	1.22	0.76	12.6	10.3	1.33	.260	3.63	86	4.08	99	8.10	0.3
11	Roberto Osuna R. Osuna	20	2015	TOR	68	1	6	.143	0	2.58	75	0	0	69.2	48	20	21	7	16	1	39	2	271	5	9.69	2.07	4.69	0.90	27.7	5.9	0.92	.238	2.71	64	3.01	74	6.20	8.2
12	Doug Bird D. Bird	20	1973	KCR	54	4	4	.500	0	2.99	83	0	0	102.1	81	34	37	10	30	2	41	7	414	1	7.30	2.64	2.77	0.88	20.0	7.2	1.08	.246	3.25	76	3.14	80	7.12	8.7
13	Seunghwan Oh S. Oh	19	2016	STL	76	6	3	.667	0	1.92	103	0	0	79.2	55	17	20	5	18	2	35	3	313	3	11.64	2.03	5.72	0.56	32.9	5.8	0.92	.270	2.26	47	2.12	52	6.21	17.5
14	Shingo Takatsu S. Takatsu	19	2004	CWS	59	6	4	.600	0	2.31	50	0	0	62.1	40	16	17	6	21	2	45	3	245	1	7.22	3.03	2.38	0.87	20.4	8.6	0.98	.205	2.45	49	3.79	80	5.78	6.4
15	Scott Williamson S. Williamson	19	1999	CIN	62	12	7	.632	0	2.41	107	0	0	93.1	54	25	29	8	43	1	40	6	366	13	10.32	4.15	2.49	0.77	29.2	11.7	1.04	.222	2.80	52	3.36	71	5.21	13.8
16	Greg McMichael G. McMichael	19	1993	ATL	74	2	3	.400	0	2.06	89	0	0	91.2	68	21	22	3	29	0	40	4	365	6	8.74	2.85	3.07	0.29	24.4	7.9	1.06	.266	2.16	50	2.41	58	6.68	17.3
17	Bob Lee B. Lee	19	1964	LAA	64	6	5	.545	5	1.51	111	0	0	137.0	87	23	31	6	58	1	39	8	545	3	7.29	3.81	1.91	0.39	20.4	10.6	1.06	.220	2.04	44	2.85	79	5.72	11.4
18	Edwin Díaz E. Díaz	18	2016	SEA	49	0	4	.000	0	2.79	88	0	0	51.2	45	16	16	5	15	3	23	2	217	6	15.33	2.61	5.87	0.87	40.6	6.9	1.16	.377	2.79	70	2.04	49	7.84	12.4
19	Joakim Soria J. Soria	17	2007	KCR	62	2	3	.400	0	2.48	75	0	0	69.0	46	19	20	3	19	1	38	3	270	2	9.78	2.48	3.95	0.39	27.8	7.0	0.94	.250	2.61	54	2.49	57	6.00	14.7
20	Jason Frasor J. Frasor	17	2004	TOR	63	4	6	.400	0	4.08	54	0	0	68.1	64	31	31	4	36	2	37	3	299	4	7.11	4.74	1.50	0.53	18.1	12.0	1.46	.296	4.08	86	3.89	84	8.43	5.4
21	Darren Hall D. Hall	17	1994	TOR	30	2	3	.400	0	3.41	28	0	0	31.2	26	12	12	3	14	1	28	1	131	1	7.96	3.98	2.00	0.85	21.4	10.7	1.26	.271	3.41	71	4.01	84	7.39	2.7
22	DeWayne Buice D. Buice	17	1987	CAL	57	6	7	.462	0	3.39	109	0	0	114.0	87	43	45	12	40	2	44	3	457	3	8.61	3.16	2.73	0.95	23.9	8.8	1.11	.255	3.55	78	3.42	76	6.87	13.6
23	Roger McDowell R. McDowell	17	1985	NYM	62	6	5	.545	2	2.83	70	0	0	127.1	108	40	43	9	37	1	36	8	516	6	4.95	2.62	1.89	0.64	13.6	7.2	1.14	.248	3.04	81	3.39	95	7.63	2.6
24	Steve Howe S. Howe	17	1980	LAD	59	7	9	.438	0	2.66	39	0	0	84.2	83	25	33	1	22	2	36	10	359	1	4.15	2.34	1.77	0.11	10.9	6.1	1.24	.278	3.51	76	2.83	78	8.82	7.3
25	Seranthony Domínguez S. Domínguez	16	2018	PHI	53	2	5	.286	0	2.95	74	0	0	58.0	32	19	19	4	22	4	24	2	231	10	11.48	3.41	3.36	0.62	32.0	9.5	0.93	.220	2.95	73	2.84	68	4.97	8.4