Jorge Posada crushed the most home runs by a switch-hitter in 2003, with 30 home runs.

	NAME	HR	SEASON	TM	G	AB	R	H	2B	3B	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	WRC	WRAA	WOBA	WRC+	BRAA
1	Jorge Posada J. Posada	30	2003	NYY	142	481	83	135	24	0	101	93	10	110	2	4	588	249	54	0	4	6	13	.281	.405	.518	.922	106	34	.397	145	33.2
2	Dmitri Young D. Young	29	2003	DET	155	562	78	167	34	7	85	58	11	130	2	1	635	302	70	0	4	16	16	.297	.372	.537	.909	106	28.1	.381	136	28.8
3	Carl Everett C. Everett	28	2003	TOT	147	526	93	151	27	3	92	53	15	84	8	4	602	268	58	4	4	6	7	.287	.366	.510	.876	97	23.4	.374	125	18.9
4	Jose Valentin J. Valentin	28	2003	CWS	144	503	79	119	26	2	74	54	3	114	8	3	569	233	56	7	2	4	6	.237	.313	.463	.776	72	2	.332	99	-0.8
5	Chipper Jones C. Jones	27	2003	ATL	153	555	103	169	33	2	106	94	1	83	2	2	656	287	62	0	6	13	10	.305	.402	.517	.920	115	34.9	.391	137	31.1
6	Carlos Beltran C. Beltran	26	2003	KCR	141	521	102	160	14	10	100	72	2	81	41	4	602	272	50	0	7	4	8	.307	.389	.522	.911	105	30.9	.389	134	25.7
7	Mark Teixeira M. Teixeira	26	2003	TEX	146	529	66	137	29	5	84	44	14	120	1	2	589	254	60	0	2	5	14	.259	.331	.480	.811	82	9.4	.347	105	3.5
8	Lance Berkman L. Berkman	25	2003	HOU	153	538	110	155	35	6	93	107	9	108	5	3	658	277	66	1	3	13	10	.288	.412	.515	.927	119	37.9	.397	139	32.6
9	Jason Varitek J. Varitek	25	2003	BOS	142	451	63	123	31	1	85	51	7	106	3	2	521	231	57	5	7	8	10	.273	.351	.512	.863	79	15.5	.363	120	12.9
10	Jose Cruz J. Cruz	20	2003	SFG	158	539	90	135	26	1	68	102	0	121	5	8	650	223	47	2	7	6	14	.250	.366	.414	.779	88	8.3	.343	108	7
11	Bill Mueller B. Mueller	19	2003	BOS	146	524	85	171	45	5	85	59	7	77	1	4	600	283	69	4	6	2	11	.326	.398	.540	.938	110	36.9	.401	145	33.9
12	Tony Clark T. Clark	16	2003	NYM	125	254	29	59	13	0	43	24	1	73	0	0	280	120	29	0	1	2	8	.232	.300	.472	.772	34	0.1	.328	99	-0.5
13	Scott Spiezio S. Spiezio	16	2003	ANA	158	521	69	138	36	7	83	46	5	66	6	3	581	236	59	2	7	8	12	.265	.326	.453	.779	73	1.4	.331	102	1.4
14	Rafael Furcal R. Furcal	15	2003	ATL	156	664	130	194	35	10	61	60	3	76	25	2	734	294	60	3	4	2	1	.292	.352	.443	.794	101	11	.346	107	6.8
15	Jose Vidro J. Vidro	15	2003	MON	144	509	77	158	36	0	65	69	7	50	3	2	592	239	51	2	5	6	16	.310	.397	.470	.866	97	24.2	.377	125	18.6
16	Bernie Williams B. Williams	15	2003	NYY	119	445	77	117	19	1	64	71	3	61	5	0	521	183	35	0	2	8	21	.263	.367	.411	.778	70	5.9	.341	108	5.2
17	D'Angelo Jimenez D. Jimenez	14	2003	TOT	146	561	69	153	24	7	57	66	2	89	11	7	639	233	45	6	4	1	7	.273	.349	.415	.764	83	4.5	.336	101	0.7
18	Alex Cintron A. Cintron	13	2003	ARI	117	448	70	142	26	6	51	29	2	33	2	3	487	219	45	5	3	0	7	.317	.359	.489	.848	75	15.5	.366	116	9.7
19	Bobby Kielty B. Kielty	13	2003	TOT	137	427	71	104	26	1	57	71	7	92	8	3	509	171	40	0	4	6	11	.244	.358	.400	.758	65	2.7	.334	100	0.2
20	Jeff DaVanon J. DaVanon	12	2003	ANA	123	330	56	93	16	1	43	42	1	59	17	5	382	147	29	4	5	0	6	.282	.360	.445	.805	55	7.7	.352	116	7.6
21	Randy Winn R. Winn	11	2003	SEA	157	600	103	177	37	4	75	41	8	108	23	5	660	255	52	6	5	0	9	.295	.346	.425	.771	86	5.4	.338	109	7.7
22	Geoff Blum G. Blum	10	2003	HOU	123	420	51	110	19	0	52	20	2	50	0	0	449	159	29	2	5	1	15	.262	.295	.379	.674	42	-13	.293	71	-16.7
23	Milton Bradley M. Bradley	10	2003	CLE	101	377	61	121	34	2	56	64	5	73	17	7	451	189	46	0	5	8	10	.321	.421	.501	.923	81	26	.397	146	25.9
24	Orlando Hudson O. Hudson	9	2003	TOR	142	474	54	127	21	6	57	39	5	87	5	4	521	187	36	0	3	1	13	.268	.328	.395	.723	60	-4.4	.318	88	-7.6
25	Ruben Sierra R. Sierra	9	2003	TOT	106	307	33	83	17	1	43	27	0	47	2	1	336	129	27	0	2	3	9	.270	.327	.420	.748	40	-1.3	.323	93	-3