Madison Bumgarner was the youngest in 2009. He was 19 years old in his rookie season.

	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	Madison Bumgarner M. Bumgarner	19	2009	SFG	4	2	0	0	0	0	0	0	0	0	1	0	0	2	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.5	.000	-121	-0.5
2	Elvis Andrus E. Andrus	20	2009	TEX	145	480	72	128	17	8	6	40	40	6	77	33	6	541	179	31	12	3	0	4	.267	.329	.373	.702	58	-6.9	.313	81	-12.9
3	Fernando Martinez F. Martinez	20	2009	NYM	29	91	11	16	6	0	1	8	5	3	14	2	0	100	25	7	1	0	0	0	.176	.242	.275	.517	4	-7.6	.236	38	-7.6
4	Rick Porcello R. Porcello	20	2009	DET	2	5	0	2	0	0	0	2	0	0	1	0	0	5	2	0	0	0	0	0	.400	.400	.400	.800	1	0.1	.358	113	0.1
5	Brett Anderson B. Anderson	21	2009	OAK	2	3	0	0	0	0	0	0	0	0	2	0	0	3	0	0	0	0	0	0	.000	.000	.000	.000	0	-0.8	.000	-119	-0.8
6	Trevor Cahill T. Cahill	21	2009	OAK	1	2	1	1	0	0	0	0	0	0	0	0	0	2	1	0	0	0	0	0	.500	.500	.500	1.000	0	0.2	.447	177	0.2
7	Jhoulys Chacin J. Chacin	21	2009	COL
8	Neftali Feliz N. Feliz	21	2009	TEX
9	Clayton Kershaw C. Kershaw	21	2009	LAD	30	48	2	5	0	0	0	2	3	0	16	0	0	59	5	0	8	0	0	1	.104	.157	.104	.261	-3	-9.7	.129	-34	-9.7
10	Mat Latos M. Latos	21	2009	SDP	10	19	0	1	0	0	0	0	0	0	9	0	0	21	1	0	2	0	0	0	.053	.053	.053	.105	-2	-4.9	.047	-83	-4.7
11	Sean O'Sullivan S. O'Sullivan	21	2009	LAA	1	3	1	1	0	0	0	0	0	0	1	0	0	3	1	0	0	0	0	0	.333	.333	.333	.667	0	-0.1	.298	77	-0.1
12	Travis Snider T. Snider	21	2009	TOR	77	241	34	58	14	1	9	29	29	3	78	1	1	276	101	24	2	1	1	5	.241	.328	.419	.748	33	0.1	.329	96	-1.3
13	Chris Tillman C. Tillman	21	2009	BAL
14	Justin Upton J. Upton	21	2009	ARI	138	526	84	158	30	7	26	86	55	2	137	20	5	588	280	63	1	4	3	10	.300	.366	.532	.899	98	27.2	.385	130	21.8
15	Nick Adenhart N. Adenhart	22	2009	LAA
16	Bryan Augenstein B. Augenstein	22	2009	ARI	7	3	1	0	0	0	0	0	1	0	1	0	0	4	0	0	0	0	0	0	.000	.250	.000	.250	0	-0.5	.177	-9	-0.5
17	Alex Avila A. Avila	22	2009	DET	29	61	9	17	4	0	5	14	10	0	18	0	0	72	36	9	0	1	0	0	.279	.375	.590	.965	13	4.7	.408	147	4.2
18	Gordon Beckham G. Beckham	22	2009	CWS	103	378	58	102	28	1	14	63	41	6	65	7	4	430	174	43	1	4	0	10	.270	.347	.460	.808	60	8.6	.353	109	4.9
19	Trevor Bell T. Bell	22	2009	LAA
20	Kyle Blanks K. Blanks	22	2009	SDP	54	148	24	37	9	0	10	22	18	6	55	1	1	172	76	19	0	0	1	4	.250	.355	.514	.868	27	6.6	.375	137	7.9
21	Michael Bowden M. Bowden	22	2009	BOS
22	Michael Brantley M. Brantley	22	2009	CLE	28	112	10	35	4	0	0	11	8	0	19	4	4	121	39	4	1	0	0	3	.313	.358	.348	.707	14	-0.8	.320	91	-1.3
23	Jay Bruce J. Bruce	22	2009	CIN	101	345	47	77	15	2	22	58	38	2	75	3	3	387	162	39	1	1	2	5	.223	.303	.470	.773	47	1.1	.332	98	-1.1
24	Everth Cabrera E. Cabrera	22	2009	SDP	103	377	59	96	18	8	2	31	46	5	88	25	8	438	136	28	8	2	5	3	.255	.342	.361	.703	47	-5.8	.313	95	-2.5
25	Carlos Carrasco C. Carrasco	22	2009	CLE