4 players were tied for the youngest in 2006. They were 20 years old. The first three are Ryan Feierabend, Felix Hernandez and Adam Jones.

	NAME	AGE	SEASON	TM	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Ryan Feierabend R. Feierabend	20	2006	SEA
2	Felix Hernandez F. Hernandez	20	2006	SEA	2	4	0	0	0	0	0	0	0	0	3	0	0	5	0	0	1	0	0	0	.000	.000	.000	.000	-1	-1.4	.000	-118	-1.4
3	Adam Jones A. Jones	20	2006	SEA	32	74	6	16	4	0	1	8	2	0	22	3	1	76	23	5	0	0	0	3	.216	.237	.311	.548	4	-6	.239	40	-5.9
4	Delmon Young D. Young	20	2006	TBD	30	126	16	40	9	1	3	10	1	3	24	2	2	131	60	13	0	1	0	0	.317	.336	.476	.812	18	1.8	.348	110	1.7
5	Joaquin Arias J. Arias	21	2006	TEX	6	11	4	6	1	0	0	1	1	0	0	0	1	12	7	1	0	0	0	0	.545	.583	.636	1.220	4	2.1	.533	227	2
6	Chad Billingsley C. Billingsley	21	2006	LAD	16	24	2	2	0	0	0	2	2	1	15	0	0	28	2	0	1	0	0	0	.083	.185	.083	.269	-1	-4.4	.146	-24	-4.5
7	Melky Cabrera M. Cabrera	21	2006	NYY	130	460	75	129	26	2	7	50	56	2	59	12	5	524	180	35	5	1	3	9	.280	.360	.391	.752	66	0.6	.333	98	-1.3
8	Matt Cain M. Cain	21	2006	SFG	31	57	1	8	2	0	0	1	1	0	28	0	0	66	10	2	8	0	0	0	.140	.155	.175	.331	-2	-10.4	.147	-26	-10.8
9	Alexi Casilla A. Casilla	21	2006	MIN	9	4	1	1	0	0	0	0	2	0	1	0	0	6	1	0	0	0	0	0	.250	.500	.250	.750	1	0.3	.384	134	0.3
10	Fabio Castro F. Castro	21	2006	TOT	15	2	0	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	1	.000	.000	.000	.000	0	-0.6	.000	-123	-0.6
11	Jose Garcia J. Garcia	21	2006	FLA	5	2	0	1	0	0	0	0	0	0	1	0	0	2	1	0	0	0	0	0	.500	.500	.500	1.000	0	0.2	.445	172	0.2
12	Joel Guzman J. Guzman	21	2006	LAD	8	19	2	4	0	0	0	3	3	1	2	0	0	23	4	0	0	0	0	3	.211	.348	.211	.558	2	-1	.279	64	-1.1
13	Cesar Jimenez C. Jimenez	21	2006	SEA
14	Matt Kemp M. Kemp	21	2006	LAD	52	154	30	39	7	1	7	23	9	0	53	6	0	166	69	15	0	3	1	1	.253	.289	.448	.737	18	-3.1	.309	83	-3.6
15	Boone Logan B. Logan	21	2006	CWS
16	Lastings Milledge L. Milledge	21	2006	NYM	56	166	14	40	7	2	4	22	12	5	39	1	2	185	63	13	1	1	4	4	.241	.310	.380	.689	17	-5.8	.295	75	-6.1
17	Andrew Miller A. Miller	21	2006	DET
18	Oswaldo Navarro O. Navarro	21	2006	SEA	4	3	0	2	0	0	0	0	0	0	1	0	0	4	2	0	1	0	0	0	.667	.667	.667	1.333	1	0.9	.593	274	0.9
19	Eric O'Flaherty E. O'Flaherty	21	2006	SEA
20	Hayden Penn H. Penn	21	2006	BAL
21	Yusmeiro Petit Y. Petit	21	2006	FLA	14	5	1	1	0	0	0	1	0	0	2	0	0	5	1	0	0	0	0	0	.200	.200	.200	.400	0	-0.7	.178	-2	-0.7
22	Ryan Sweeney R. Sweeney	21	2006	CWS	18	35	1	8	0	0	0	5	0	0	7	0	0	35	8	0	0	0	0	1	.229	.229	.229	.457	1	-3.8	.203	9	-4.1
23	Troy Tulowitzki T. Tulowitzki	21	2006	COL	25	96	15	23	2	0	1	6	10	1	25	3	0	108	28	3	1	0	3	1	.240	.318	.292	.609	8	-5.8	.269	46	-7.6
24	B.J. Upton	21	2006	TBD	50	175	20	43	5	0	1	10	13	1	40	11	3	189	51	6	0	0	0	1	.246	.302	.291	.593	14	-9.9	.270	58	-10.1
25	Ryan Zimmerman R. Zimmerman	21	2006	WSH	157	614	84	176	47	3	20	110	61	2	120	11	8	682	289	70	1	4	7	15	.287	.351	.471	.822	97	11.2	.351	112	11