The New York Yankees have smashed the most grand slams by a team in the postseason, with 15 grand slams.

	TEAM	GRANDSLAM	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Yankees	15	4,962	.540	3,191	2,716	15,023	1,972	3,727	619	77	483	1,869	1,615	132	2,976	193	105	16,998	5,949	1,179	143		147	300	.248	.325	.396	.721
2	Red Sox	9	2,281	.515	1,456	1,372	6,972	916	1,751	334	58	196	859	704	62	1,377	81	44	7,864	2,789	588	80		72	157	.251	.323	.400	.723
3	Braves	8	2,970	.466	1,463	1,676	7,122	829	1,703	281	32	201	795	735	49	1,616	132	56	8,038	2,651	514	86		78	128	.239	.313	.372	.685
4	Dodgers	7	4,086	.467	2,049	2,337	9,991	1,178	2,357	399	57	302	1,127	1,039	90	2,199	179	72	11,281	3,776	758	115		111	190	.236	.312	.378	.690
5	Guardians	6	1,462	.476	927	1,022	4,404	517	1,011	187	16	130	485	436	48	1,035	90	27	4,955	1,620	333	42		39	87	.230	.304	.368	.672
6	Giants	4	2,513	.479	1,221	1,328	6,524	727	1,581	245	44	132	673	565	41	1,249	89	82	7,267	2,310	421	106		70	105	.242	.305	.354	.659
7	Rangers	3	729	.482	481	517	2,365	301	565	108	6	84	286	220	19	518	39	17	2,632	937	198	16	12	22	52	.239	.307	.396	.704
8	Mets	3	1,417	.541	820	695	3,612	452	854	139	13	100	425	372	41	787	69	19	4,100	1,319	252	43	32	46	65	.236	.312	.365	.677
9	Orioles	3	1,192	.484	678	722	3,481	408	801	140	7	104	385	332	24	694	28	23	3,883	1,267	251	21		34	74	.230	.300	.364	.664
10	Cardinals	3	3,530	.483	1,758	1,881	8,675	1,030	2,103	395	53	191	958	743	74	1,705	143	65	9,692	3,177	639	153		106	147	.242	.306	.366	.672
11	Cubs	3	1,727	.362	645	1,135	4,333	460	1,006	183	27	103	426	370	37	982	96	55	4,838	1,552	313	85		29	77	.232	.297	.358	.655
12	Rays	2	726	.424	429	582	2,135	253	476	79	8	95	248	184	18	641	39	14	2,349	856	182	5	7	9	43	.223	.289	.401	.690
13	Diamondbacks	2	739	.472	395	442	1,920	235	476	76	10	65	231	183	21	482	40	13	2,160	767	151	25	11	21	43	.248	.319	.399	.718
14	Nationals	2	652	.476	317	349	1,540	173	349	64	4	43	164	162	12	404	25	8	1,743	550	111	18	11	19	22	.227	.303	.357	.660
15	Astros	2	1,966	.502	1,211	1,203	5,490	677	1,319	219	13	205	653	568	73	1,244	83	29	6,208	2,179	437	47	30	66	128	.240	.318	.397	.715
16	Angels	2	715	.417	396	553	2,210	275	575	103	10	62	264	161	25	384	36	17	2,449	884	175	36	17	20	44	.260	.315	.400	.715
17	Twins	2	1,117	.345	469	889	3,215	334	765	136	19	82	320	296	29	681	53	31	3,590	1,185	237	35		26	61	.238	.307	.369	.675
18	Phillies	2	1,790	.482	976	1,047	4,635	573	1,101	216	27	150	543	488	48	1,026	95	38	5,256	1,821	393	55		65	92	.238	.315	.393	.708
19	Marlins	1	523	.573	330	246	1,361	163	325	63	5	31	156	147	17	298	18	8	1,549	491	99	18	6	22	31	.239	.319	.361	.680
20	Mariners	1	530	.456	334	399	1,672	189	386	68	5	58	180	167	17	433	32	13	1,880	638	131	14	10	16	29	.231	.305	.382	.687
21	Rockies	1	387	.402	160	238	829	90	199	38	5	20	87	70	7	202	9	4	924	307	63	11	7	8	14	.240	.302	.370	.673
22	Blue Jays	1	804	.473	512	571	2,583	343	672	130	12	77	326	232	21	493	61	15	2,874	1,057	219	13	25	21	54	.260	.323	.409	.733
23	Reds	1	1,327	.451	613	747	3,306	355	779	142	27	65	340	283	24	598	87	40	3,680	1,170	234	41		46	61	.236	.298	.354	.652
24	Tigers	1	1,499	.459	814	960	4,542	491	1,065	195	16	107	463	446	46	916	67	38	5,107	1,613	318	60		42	96	.234	.309	.355	.664
25	White Sox	1	669	.446	353	439	2,061	228	508	90	12	42	212	188	33	385	47	34	2,327	748	144	36		10	40	.246	.318	.363	.681