best whip in playoff history with at least 20 wins

The Baltimore Orioles have the lowest WHIP by a team in the postseason when winning 20+ games, with a WHIP of 1.19.

	TEAM	WHIP	W	L	W%	G	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	BABIP	RA	H/9
1	Orioles	1.19	54	49	.524	103	103	2.80	732	26	8	16	939.0	794	292	333	90	327	23	43	3,878	23	7.02	3.13	2.24	0.86	18.9	8.4	.260	3.19	7.61
2	Astros	1.21	83	78	.516	161	161	3.80	1,476	6	1	32	1464.0	1,249	618	653	200	516	67	37	6,108	50	9.07	3.17	2.86	1.23	24.2	8.4	.273	4.01	7.68
3	Tigers	1.21	64	66	.492	131	131	3.35	913	37	4	23	1169.2	1,055	436	507	84	357	46	29	4,896	40	7.03	2.75	2.56	0.65	18.6	7.3	.278	3.90	8.12
4	Giants	1.21	100	93	.518	195	195	3.32	1,178	50	17	33	1751.0	1,559	645	735	138	560	49	53	7,299	49	6.05	2.88	2.10	0.71	16.1	7.7	.264	3.78	8.01
5	Athletics	1.21	85	82	.509	167	167	3.09	1,006	44	8	38	1492.2	1,338	513	598	122	470	41	41	6,196	44	6.07	2.83	2.14	0.74	16.2	7.6	.267	3.61	8.07
6	Nationals	1.23	24	22	.522	46	46	3.26	379	3	2	11	417.0	354	151	167	46	158	19	20	1,750	14	8.18	3.41	2.40	0.99	21.7	9.0	.268	3.60	7.64
7	Diamondbacks	1.24	28	29	.491	57	57	3.61	461	5	3	9	508.0	435	204	225	59	195	17	12	2,135	21	8.17	3.45	2.36	1.05	21.6	9.1	.268	3.99	7.71
8	Dodgers	1.24	143	152	.485	295	295	3.67	2,219	41	14	53	2612.2	2,257	1,064	1,167	299	986	86	115	10,955	82	7.64	3.40	2.25	1.03	20.3	9.0	.266	4.02	7.77
9	Yankees	1.24	254	186	.577	441	441	3.42	2,920	85	15	98	3966.2	3,599	1,506	1,657	379	1,326	105	114	16,577	93	6.63	3.01	2.20	0.86	17.6	8.0	.272	3.76	8.17
10	White Sox	1.24	30	32	.484	62	62	3.49	345	19	2	11	551.1	505	214	248	40	180	22	16	2,314	14	5.63	2.94	1.92	0.65	14.9	7.8	.269	4.05	8.24
11	Braves	1.25	102	109	.483	211	211	3.45	1,625	21	7	39	1900.2	1,656	729	821	203	712	53	117	7,967	53	7.69	3.37	2.28	0.96	20.4	8.9	.270	3.89	7.84
12	Phillies	1.25	69	69	.500	138	138	3.60	1,066	12	3	35	1222.1	1,104	489	528	116	423	44	47	5,143	39	7.85	3.11	2.52	0.85	20.7	8.2	.283	3.89	8.13
13	Red Sox	1.25	109	93	.540	203	203	3.67	1,397	36	7	36	1837.0	1,671	749	829	184	631	89	61	7,744	43	6.84	3.09	2.21	0.90	18.0	8.1	.273	4.06	8.19
14	Royals	1.26	43	37	.538	80	80	3.37	518	9	2	18	720.2	668	270	295	63	237	14	17	3,014	19	6.47	2.96	2.19	0.79	17.2	7.9	.277	3.68	8.34
15	Reds	1.26	49	50	.495	99	99	3.34	566	15	3	20	890.0	782	330	366	82	336	20	48	3,743	23	5.72	3.40	1.68	0.83	15.1	9.0	.256	3.70	7.91
16	Mets	1.26	59	46	.562	105	105	3.41	818	9	3	26	970.1	829	368	399	89	391	35	54	4,106	24	7.59	3.63	2.09	0.83	19.9	9.5	.267	3.70	7.69
17	Blue Jays	1.27	32	36	.471	68	68	4.00	508	2	0	13	609.0	547	271	294	62	229	18	18	2,571	24	7.51	3.38	2.22	0.92	19.8	8.9	.277	4.34	8.08
18	Rangers	1.29	34	35	.493	69	69	3.97	539	3	0	15	623.2	565	275	304	87	237	25	24	2,647	18	7.78	3.42	2.27	1.26	20.4	9.0	.272	4.39	8.15
19	Cubs	1.29	49	77	.389	127	127	3.84	840	25	9	17	1131.2	1,018	483	549	107	439	47	35	4,805	43	6.68	3.49	1.91	0.85	17.5	9.1	.270	4.37	8.10
20	Cardinals	1.29	134	128	.511	262	262	3.53	1,756	41	13	54	2305.0	2,092	905	1,022	243	877	77	113	9,798	62	6.86	3.42	2.00	0.95	17.9	9.0	.270	3.99	8.17
21	Brewers	1.30	23	32	.418	55	55	4.05	426	2	1	14	482.2	455	217	241	56	171	15	17	2,047	19	7.94	3.19	2.49	1.04	20.8	8.4	.289	4.49	8.48
22	Pirates	1.30	43	54	.443	97	97	3.90	523	23	2	19	854.2	812	370	416	79	299	25	36	3,647	24	5.51	3.15	1.75	0.83	14.3	8.2	.269	4.38	8.55
23	Guardians	1.31	65	66	.496	131	131	3.82	1,043	11	3	25	1184.0	1,062	502	551	151	491	45	55	5,035	35	7.93	3.73	2.12	1.15	20.7	9.8	.276	4.19	8.07
24	Padres	1.33	25	37	.403	62	62	4.19	504	1	1	15	535.1	494	249	269	70	219	31	26	2,293	23	8.47	3.68	2.30	1.18	22.0	9.6	.289	4.52	8.31
25	Rays	1.36	28	36	.438	64	64	3.98	548	0	0	11	570.0	551	252	269	91	222	27	14	2,457	31	8.65	3.51	2.47	1.44	22.3	9.0	.293	4.25	8.70