most saves by a player before the age of 22

Roberto Osuna has the most career saves by a pitcher younger than 22, with 56 saves.

Interpreted as:

most regular-season saves by a player before the age of 22

	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	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	6.45
2	Terry Forster T. Forster	46	158	14	19	.424	15	3.04	272	4	0	322.1	295	109	123	12	145	4	89	12	1,383	13	7.59	4.05	1.88	0.34	19.7	10.5	1.37	.298	3.43	8.24
3	Billy McCool B. McCool	39	134	19	19	.500	5	3.06	277	0	0	252.2	198	86	93	15	93	6	90	13	1,035	11	9.87	3.31	2.98	0.53	26.8	9.0	1.15	.284	3.31	7.05
4	Victor Cruz V. Cruz	19	93	10	12	.455	0	3.29	114	0	0	126.0	98	46	51	10	79	2	71	8	542	4	8.14	5.64	1.44	0.71	21.0	14.6	1.40	.261	3.64	7.00
5	Lloyd Allen L. Allen	16	71	5	8	.385	4	2.69	97	0	0	137.0	110	41	46	5	65	1	32	10	571	7	6.37	4.27	1.49	0.33	17.0	11.4	1.28	.261	3.02	7.23
6	Byung-Hyun Kim B. Kim	15	86	7	8	.467	1	4.50	142	0	0	98.0	72	49	54	11	66	14	40	7	441	7	13.04	6.06	2.15	1.01	32.2	15.0	1.41	.293	4.96	6.61
7	Kelvim Escobar K. Escobar	14	31	3	3	.500	0	4.33	41	0	0	35.1	36	17	19	3	24	0	24	2	165	0	10.44	6.11	1.71	0.76	24.8	14.5	1.70	.340	4.84	9.17
8	Bart Johnson B. Johnson	14	75	17	20	.459	34	3.54	242	6	1	290.0	262	114	131	22	163	8	26	8	1,268	17	7.51	5.06	1.48	0.68	19.1	12.9	1.47	.288	4.07	8.13
9	Ed Nunez E. Nunez	12	78	5	8	.385	10	3.68	131	0	0	161.1	152	66	72	21	71	6	43	5	698	2	7.31	3.96	1.85	1.17	18.8	10.2	1.38	.279	4.02	8.48
10	Huston Street H. Street	10	43	4	1	.800	0	1.38	46	0	0	52.0	33	8	10	1	17	2	25	3	200	0	7.96	2.94	2.71	0.17	23.0	8.5	0.96	.239	1.73	5.71
11	Dean Chance D. Chance	10	70	18	16	.529	37	3.38	186	7	2	282.1	285	106	132	17	97	9	20	8	1,222	5	5.93	3.09	1.92	0.54	15.2	7.9	1.35	.294	4.21	9.09
12	Jerry Walker J. Walker	10	78	15	14	.517	43	3.33	167	9	3	338.0	307	125	138	31	127	6	22	10	1,405	4	4.45	3.38	1.31	0.83	11.9	9.0	1.28	.257	3.67	8.17
13	Art Houtteman A. Houtteman	10	101	17	27	.386	44	4.29	191	16	3	420.0	466	200	238	32	130	6	39		1,828	5	4.09	2.79	1.47	0.69	10.4	7.1	1.42	.295	5.10	9.99
14	Masanori Murakami M. Murakami	9	54	5	1	.833	1	3.43	100	0	0	89.1	65	34	34	10	23	3	21	5	356	3	10.07	2.32	4.35	1.01	28.1	6.5	0.99	.250	3.43	6.55
15	Erv Palica E. Palica	9	93	14	16	.467	11	4.07	120	3	0	225.1	207	102	107	19	110	5	42		964	5	4.79	4.39	1.09	0.76	12.4	11.4	1.41	.265	4.27	8.27
16	Mitch Williams M. Williams	8	80	8	6	.571	0	3.58	90	0	0	98.0	69	39	39	8	79	11	38	8	435	5	8.27	7.26	1.14	0.73	20.7	18.2	1.51	.247	3.58	6.34
17	Neil Allen N. Allen	8	50	6	10	.375	5	3.55	65	0	0	99.0	100	39	46	4	47	0	27	13	431	6	5.91	4.27	1.38	0.36	15.1	10.9	1.48	.305	4.18	9.09
18	Don Gullett D. Gullett	8	110	30	18	.625	49	3.01	279	6	3	430.0	377	144	157	33	151	3	21	17	1,773	10	5.84	3.16	1.85	0.69	15.7	8.5	1.23	.263	3.29	7.89
19	Mike McCormick M. McCormick	8	155	40	38	.513	99	3.80	436	30	9	729.1	714	308	349	66	250	8	28	33	3,101	31	5.38	3.09	1.74	0.81	14.1	8.1	1.32	.277	4.31	8.81
20	Bob Feller B. Feller	8	161	82	41	.667	135	3.19	973	89	10	1105.1	865	392	440	44	621	21	20		4,722	40	7.92	5.06	1.57	0.36	20.6	13.2	1.34	.268	3.58	7.04
21	Bob Moose B. Moose	7	84	23	15	.605	43	2.86	298	10	4	355.1	299	113	131	15	107	9	23	10	1,460	5	7.55	2.71	2.79	0.38	20.4	7.3	1.14	.275	3.32	7.57
22	Tony Pierce T. Pierce	7	49	3	4	.429	6	3.05	61	0	0	97.1	79	33	42	6	30	5	20	6	400	1	5.64	2.77	2.03	0.55	15.3	7.5	1.12	.245	3.88	7.30
23	Billy Hoeft B. Hoeft	7	70	12	23	.343	42	4.59	182	12	2	352.2	377	180	196	41	125	9	12		1,541	7	4.64	3.19	1.46	1.05	11.8	8.1	1.42	.284	5.00	9.62
24	Jordan Hicks J. Hicks	6	65	3	3	.500	0	3.01	60	0	0	68.2	52	23	25	1	36	7	19	1	296	8	7.86	4.72	1.67	0.13	20.3	12.2	1.28	.266	3.28	6.82
25	Neftali Feliz N. Feliz	6	31	2	1	.667	0	2.74	52	0	0	42.2	25	13	13	4	11	3	10	1	166	1	10.97	2.32	4.73	0.84	31.3	6.6	0.84	.219	2.74	5.27