The Boston Red Sox have the most at-bats by a team in a season, with 5,781 at-bats in 1997.

	TEAM	AB	SEASON	G	W%	W	L	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Red Sox	5,781	1997	162	.481	78	84	851	1,684	373	32	185	810	514	59	1,044	68	48	6,430	2,676	590	21	55	54	155	.291	.352	.463	.815
2	Red Sox	5,770	2019	162	.519	84	78	901	1,554	345	27	245	857	590	49	1,382	68	30	6,473	2,688	617	20	44	36	127	.269	.340	.466	.806
3	Red Sox	5,769	2003	162	.586	95	67	961	1,667	371	40	238	932	620	53	943	88	35	6,530	2,832	649	24	64	61	126	.289	.360	.491	.851
4	Reds	5,767	1968	163	.512	83	79	690	1,573	281	36	106	638	379	37	938	59	55	6,286	2,244	423	64	39	95	142	.273	.320	.389	.709
5	Tigers	5,757	2007	162	.543	88	74	887	1,652	352	50	177	857	474	56	1,054	103	30	6,363	2,635	579	31	45	45	128	.287	.345	.458	.802
6	Red Sox	5,756	1996	162	.525	85	77	928	1,631	308	31	209	882	642	67	1,020	91	44	6,545	2,628	548	33	47	50	148	.283	.359	.457	.816
7	Orioles	5,736	2004	162	.481	78	84	842	1,614	319	18	169	803	528	57	949	101	41	6,429	2,476	506	46	62	34	126	.281	.345	.432	.776
8	Tigers	5,735	2013	162	.574	93	69	796	1,625	292	23	176	767	531	43	1,073	35	20	6,388	2,491	491	32	47	40	146	.283	.346	.434	.780
9	Cardinals	5,734	1979	163	.531	86	76	731	1,594	279	63	100	685	460	27	838	116	69	6,347	2,299	442	63	63	69	116	.278	.331	.401	.732
10	Brewers	5,733	1982	163	.586	95	67	891	1,599	277	41	216	843	484	18	714	84	52	6,337	2,606	534	56	46	42	106	.279	.335	.455	.789
11	Twins	5,732	2019	162	.623	101	61	939	1,547	318	23	307	906	525	81	1,334	28	21	6,389	2,832	648	10	41	21	101	.270	.338	.494	.832
12	Rangers	5,728	2008	162	.488	79	83	901	1,619	376	35	194	867	595	63	1,207	81	25	6,477	2,647	605	37	54	43	117	.283	.354	.462	.816
13	Athletics	5,728	2004	162	.562	91	71	793	1,545	336	15	189	752	608	55	1,061	47	22	6,459	2,478	540	25	43	40	142	.270	.343	.433	.776
14	Pirates	5,724	1967	163	.500	81	81	679	1,585	193	62	91	615	387	36	914	79	37	6,255	2,175	346	63	45	97	131	.277	.324	.380	.704
15	Mariners	5,722	2004	162	.389	63	99	698	1,544	276	20	136	658	492	54	1,058	110	42	6,362	2,268	432	46	48	49	131	.270	.331	.396	.727
16	Red Sox	5,720	2004	162	.605	98	64	949	1,613	373	25	222	912	659	69	1,189	68	30	6,515	2,702	620	12	55	39	123	.282	.360	.472	.832
17	Red Sox	5,720	1985	163	.500	81	81	800	1,615	292	31	162	760	562	30	816	66	27	6,419	2,455	485	50	57	39	164	.282	.347	.429	.776
18	Yankees	5,717	2007	162	.580	94	68	968	1,656	326	32	201	929	637	78	991	123	40	6,527	2,649	559	41	54	32	138	.290	.366	.463	.829
19	Rockies	5,717	1999	162	.444	72	90	906	1,644	305	39	223	863	508	43	863	70	43	6,368	2,696	567	54	46	31	125	.288	.348	.472	.819
20	Rangers	5,716	2005	162	.488	79	83	865	1,528	311	29	260	834	495	48	1,112	67	15	6,300	2,677	600	9	32	20	123	.267	.329	.468	.798
21	Blue Jays	5,716	1986	163	.531	86	76	809	1,540	285	35	181	767	496	33	848	110	59	6,318	2,438	501	24	49	23	122	.269	.329	.427	.755
22	Royals	5,714	1980	162	.599	97	65	809	1,633	266	59	115	766	508	38	709	185	43	6,357	2,362	440	34	63	45	147	.286	.345	.413	.758
23	Red Sox	5,710	2011	162	.556	90	72	875	1,600	352	35	203	842	578	50	1,108	102	42	6,410	2,631	590	22	50	52	136	.280	.349	.461	.810
24	Yankees	5,710	1997	162	.593	96	66	891	1,636	325	23	161	846	676	37	954	99	58	6,527	2,490	509	34	70	51	138	.287	.362	.436	.798
25	Royals	5,709	2000	162	.475	77	85	879	1,644	281	27	150	831	511	48	840	121	35	6,394	2,429	458	56	70	28	139	.288	.348	.425	.773