Kazuhiro Sasaki had the most saves by a pitcher in his first 2 seasons, with 82 saves.

Interpreted as:

most regular-season saves by a player in first 2 years

	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	ERA-	FIP	FIP-	H/9	PRAA
1	Kazuhiro Sasaki K. Sasaki	82	132	2	9	.182	0	3.20	140	0	0	129.1	90	46	49	16	42	6	121	7	526	5	9.74	2.92	3.33	1.11	26.6	8.0	1.02	.230	3.41	71	3.64	80	6.26	12.9
2	Billy Koch B. Koch	64	124	9	8	.529	0	2.97	117	0	0	142.1	133	47	54	11	48	5	110	9	598	1	7.40	3.04	2.44	0.70	19.6	8.0	1.27	.293	3.41	60	3.60	75	8.41	18.8
3	Takashi Saito T. Saito	63	135	8	3	.727	0	1.77	185	0	0	142.2	81	28	29	8	36	5	103	3	537	2	11.67	2.27	5.14	0.50	34.5	6.7	0.82	.241	1.83	41	2.18	49	5.11	36.5
4	Huston Street H. Street	60	136	9	5	.643	0	2.48	139	0	0	149.0	117	41	45	7	39	4	102	7	596	5	8.40	2.36	3.56	0.42	23.3	6.5	1.05	.270	2.72	57	2.68	61	7.07	28.6
5	Joakim Soria J. Soria	59	125	4	6	.400	0	2.05	141	0	0	136.1	85	31	33	8	38	7	95	4	530	3	9.31	2.51	3.71	0.53	26.6	7.2	0.90	.229	2.18	45	2.86	66	5.61	22.4
6	Roberto Osuna R. Osuna	56	140	5	9	.357	0	2.63	157	0	0	143.2	103	42	44	16	30	4	100	6	559	9	9.84	1.88	5.23	1.00	28.1	5.4	0.93	.247	2.76	64	3.10	75	6.45	16.8
7	Edwin Díaz E. Díaz	52	115	4	10	.286	0	3.06	177	0	0	117.2	89	40	44	15	47	6	75	4	495	9	13.54	3.59	3.77	1.15	35.8	9.5	1.16	.296	3.37	74	3.14	74	6.81	14.5
8	Andrew Bailey A. Bailey	51	115	7	6	.538	0	1.70	133	0	0	132.1	83	25	25	8	37	0	96	4	512	6	9.05	2.52	3.59	0.54	26.0	7.2	0.91	.225	1.70	40	2.70	64	5.64	22.9
9	Félix Bautista F. Bautista	48	121	12	6	.667	0	1.85	198	0	0	126.2	68	26	32	11	49	3	76	1	490	9	14.07	3.48	4.04	0.78	40.4	10.0	0.92	.249	2.27	47	2.41	61	4.83	23
10	Drew Storen D. Storen	48	127	10	7	.588	0	3.10	126	0	0	130.2	105	45	48	11	42	5	74	7	535	5	8.68	2.89	3.00	0.76	23.6	7.9	1.13	.268	3.31	79	3.29	84	7.23	9.2
11	Mike Schooler M. Schooler	48	107	6	15	.286	0	3.09	123	0	0	125.1	126	43	48	6	43	3	93	7	543	10	8.83	3.09	2.86	0.43	22.7	7.9	1.35	.326	3.45	76	2.52	63	9.05	20
12	Alexis Díaz A. Díaz	47	130	16	9	.640	0	2.47	169	0	0	131.0	72	36	48	9	69	15	71	3	541	10	11.61	4.74	2.45	0.62	31.2	12.8	1.08	.226	3.30	55	3.42	77	4.95	14.1
13	Craig Kimbrel C. Kimbrel	47	100	8	3	.727	0	1.75	167	0	0	97.2	57	19	21	3	48	1	71	2	394	8	15.39	4.42	3.48	0.28	42.4	12.2	1.08	.309	1.94	46	1.51	40	5.25	25.2
14	Bobby Jenks B. Jenks	47	99	4	5	.444	0	3.55	130	0	0	109.0	100	43	47	8	46	3	76	13	468	7	10.73	3.80	2.83	0.66	27.8	9.8	1.34	.327	3.88	76	3.01	64	8.26	19.3
15	Dick Radatz D. Radatz	47	128	24	12	.667	0	2.10	306	0	0	257.0	189	60	63	18	91	9	111	15	1,047	9	10.72	3.19	3.36	0.63	29.2	8.7	1.09	.274	2.21	53	2.24	56	6.62	49.4
16	Doug Henry D. Henry	44	100	3	5	.375	0	2.94	80	0	0	101.0	80	33	38	7	38	0	81	5	414	4	7.13	3.39	2.11	0.62	19.3	9.2	1.17	.253	3.39	75	3.25	83	7.13	7.6
17	Neftali Feliz N. Feliz	42	90	5	3	.625	0	2.42	110	0	0	100.1	56	27	27	7	26	8	62	1	386	5	9.87	2.33	4.23	0.63	28.5	6.7	0.82	.209	2.42	54	2.81	64	5.02	17.2
18	Bob Lee B. Lee	42	133	15	12	.556	5	1.71	200	0	0	268.1	182	51	66	17	100	2	89	16	1,071	4	6.71	3.35	2.00	0.57	18.7	9.3	1.05	.219	2.21	51	3.04	87	6.10	13.6
19	Todd Worrell T. Worrell	41	91	12	10	.545	0	2.23	90	0	0	125.1	103	31	36	11	48	1	71	18	518	3	6.46	3.45	1.88	0.79	17.4	9.3	1.20	.250	2.59	61	3.62	100	7.40	-0.3
20	Bruce Sutter B. Sutter	41	114	13	6	.684	0	1.94	202	0	0	190.2	132	41	48	9	49	1	76	15	743	9	9.53	2.31	4.12	0.42	27.2	6.6	0.95	.255	2.27	49	1.97	50	6.23	40.4
21	John Rocker J. Rocker	40	121	5	8	.385	0	2.37	146	0	0	110.1	69	29	34	9	59	4	77	8	457	13	11.91	4.81	2.47	0.73	31.9	12.9	1.16	.251	2.77	54	3.25	74	5.63	14.9
22	Greg McMichael G. McMichael	40	125	6	9	.400	0	2.75	136	0	0	150.1	134	46	51	4	48	0	81	10	624	9	8.14	2.87	2.83	0.24	21.8	7.7	1.21	.298	3.05	65	2.53	60	8.02	27.8
23	Doug Corbett D. Corbett	40	127	10	12	.455	0	2.21	149	0	0	224.0	182	55	60	12	76	1	108	21	908	5	5.99	3.05	1.96	0.48	16.4	8.4	1.15	.254	2.41	56	3.08	79	7.31	20.5
24	Seunghwan Oh S. Oh	39	138	7	9	.438	0	2.85	157	0	0	139.0	123	44	51	15	33	5	73	12	577	4	10.17	2.14	4.76	0.97	27.2	5.7	1.12	.294	3.30	69	3.11	75	7.96	16.1
25	Troy Percival T. Percival	39	124	3	4	.429	0	2.13	194	0	0	148.0	75	35	39	14	57	3	68	6	575	4	11.80	3.47	3.40	0.85	33.7	9.9	0.89	.199	2.37	44	2.95	61	4.56	31.1