The Los Angeles Dodgers allowed the fewest runs by a team in 2003, with 556 runs.

	TEAM	R	SEASON	G	W%	W	L	GS	ERA	SO	CG	SHO	SV	IP	H	ER	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Dodgers	556	2003	162	.525	85	77	162	3.16	1,289	3	3	58	1457.2	1,254	511	127	526	40	35	6,001	50	7.96	3.25	2.45	0.78	21.5	8.8	1.22	.280	3.43	7.74
2	Mariners	637	2003	162	.574	93	69	162	3.76	1,001	8	3	38	1441.0	1,340	602	173	466	54	24	6,025	35	6.25	2.91	2.15	1.08	16.6	7.7	1.25	.269	3.98	8.37
3	Giants	638	2003	161	.621	100	61	161	3.73	1,006	7	4	43	1437.1	1,349	595	136	546	43	34	6,090	68	6.30	3.42	1.84	0.85	16.5	9.0	1.32	.278	3.99	8.45
4	Athletics	643	2003	162	.593	96	66	162	3.63	1,018	16	5	48	1441.2	1,336	582	140	499	54	42	6,078	41	6.36	3.12	2.04	0.87	16.7	8.2	1.27	.274	4.01	8.34
5	Astros	677	2003	162	.537	87	75	162	3.86	1,139	1	0	50	1450.0	1,350	622	161	565	74	53	6,176	40	7.07	3.51	2.02	1.00	18.4	9.1	1.32	.281	4.20	8.38
6	Cubs	683	2003	162	.543	88	74	162	3.83	1,404	13	6	36	1456.1	1,304	619	143	617	71	36	6,227	63	8.68	3.81	2.28	0.88	22.5	9.9	1.32	.291	4.22	8.06
7	Diamondbacks	685	2003	162	.519	84	78	162	3.84	1,291	7	5	42	1455.0	1,379	621	150	526	72	53	6,230	52	7.99	3.25	2.45	0.93	20.7	8.4	1.31	.293	4.24	8.53
8	Marlins	692	2003	162	.562	91	71	162	4.04	1,132	7	2	36	1445.1	1,415	648	128	530	40	40	6,165	51	7.05	3.30	2.14	0.80	18.4	8.6	1.35	.297	4.31	8.81
9	Phillies	697	2003	162	.531	86	76	162	4.04	1,060	9	7	33	1443.2	1,386	648	142	536	77	51	6,195	53	6.61	3.34	1.98	0.89	17.1	8.7	1.33	.284	4.35	8.64
10	White Sox	715	2003	162	.531	86	76	162	4.17	1,056	12	0	36	1431.0	1,364	663	162	518	53	30	6,067	39	6.64	3.26	2.04	1.02	17.4	8.5	1.32	.281	4.50	8.58
11	Yankees	716	2003	163	.623	101	61	163	4.02	1,119	8	3	49	1462.0	1,512	653	145	375	49	36	6,209	33	6.89	2.31	2.98	0.89	18.0	6.0	1.29	.302	4.41	9.31
12	Expos	716	2003	162	.512	83	79	162	4.01	1,028	15	2	42	1437.2	1,467	640	181	463	71	51	6,171	71	6.44	2.90	2.22	1.13	16.7	7.5	1.34	.290	4.48	9.18
13	Braves	740	2003	162	.623	101	61	162	4.10	992	4	1	51	1456.1	1,425	663	147	555	42	69	6,247	53	6.13	3.43	1.79	0.91	15.9	8.9	1.36	.283	4.57	8.81
14	Angels	743	2003	162	.475	77	85	162	4.28	980	5	2	39	1431.1	1,444	680	190	486	76	38	6,161	53	6.16	3.06	2.02	1.19	15.9	7.9	1.35	.283	4.67	9.08
15	Mets	754	2003	161	.410	66	95	161	4.48	907	3	3	38	1413.1	1,497	704	168	576	45	71	6,204	45	5.78	3.67	1.57	1.07	14.6	9.3	1.47	.295	4.80	9.53
16	Twins	758	2003	162	.556	90	72	162	4.41	997	7	3	45	1462.0	1,526	716	187	402	50	35	6,246	62	6.14	2.47	2.48	1.15	16.0	6.4	1.32	.290	4.67	9.39
17	Indians	778	2003	162	.420	68	94	162	4.21	943	5	2	34	1459.1	1,477	682	179	501	64	37	6,254	49	5.82	3.09	1.88	1.10	15.1	8.0	1.36	.284	4.80	9.11
18	Cardinals	796	2003	162	.525	85	77	162	4.60	969	9	3	41	1463.2	1,544	748	210	508	65	36	6,375	53	5.96	3.12	1.91	1.29	15.2	8.0	1.40	.289	4.89	9.49
19	Pirates	801	2003	162	.463	75	87	162	4.64	926	7	3	44	1444.1	1,527	744	178	502	61	58	6,293	50	5.77	3.13	1.84	1.11	14.7	8.0	1.40	.292	4.99	9.52
20	Red Sox	809	2003	162	.586	95	67	162	4.48	1,141	5	0	36	1464.2	1,503	729	153	488	76	41	6,355	44	7.01	3.00	2.34	0.94	18.0	7.7	1.36	.300	4.97	9.24
21	Orioles	820	2003	163	.438	71	91	163	4.76	981	9	1	41	1449.2	1,579	767	198	526	80	43	6,366	42	6.09	3.27	1.87	1.23	15.4	8.3	1.45	.301	5.09	9.80
22	Blue Jays	826	2003	162	.531	86	76	162	4.69	984	14	4	35	1435.0	1,560	748	184	485	57	46	6,270	56	6.17	3.04	2.03	1.15	15.7	7.7	1.43	.302	5.18	9.78
23	Padres	831	2003	162	.395	64	98	162	4.87	1,091	2	0	31	1431.1	1,458	774	208	611	62	52	6,303	64	6.86	3.84	1.79	1.31	17.3	9.7	1.45	.289	5.23	9.17
24	Devil Rays	852	2003	162	.389	63	99	162	4.93	877	7	3	30	1436.2	1,454	787	196	639	95	37	6,340	65	5.49	4.00	1.37	1.23	13.8	10.1	1.46	.278	5.34	9.11
25	Royals	867	2003	162	.512	83	79	162	5.05	865	7	3	36	1438.2	1,569	808	190	566	66	33	6,366	60	5.41	3.54	1.53	1.19	13.6	8.9	1.48	.295	5.42	9.82