The Philadelphia Athletics had the lowest winning percentage by a team in 1946, winning 31.8 percent of the time.

	TEAM	W%	SEASON	W	L	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	GIDP	AVG	OBP	SLG	OPS
1	Athletics	.318	1946	49	105	155	5,200	529	1,317	220	51	40	483	482	9	596	39	30	5,796	1,759	311	105	120	.253	.318	.338	.656
2	Giants	.396	1946	61	93	154	5,191	612	1,326	176	37	121	576	530	27	546	46		5,834	1,939	334	86	121	.255	.328	.374	.701
3	Pirates	.409	1946	63	91	155	5,199	552	1,300	202	52	60	508	592	15	555	48		5,907	1,786	314	101	125	.250	.328	.344	.672
4	Browns	.429	1946	66	88	156	5,373	621	1,350	220	46	84	576	464	16	713	23	35	5,920	1,914	350	67	128	.251	.313	.356	.669
5	Reds	.435	1946	67	87	156	5,291	523	1,262	206	33	65	481	493	28	603	82		5,934	1,729	304	122	102	.239	.307	.327	.634
6	Indians	.442	1946	68	86	156	5,242	537	1,285	233	56	79	497	506	13	696	57	49	5,857	1,867	368	96	116	.245	.313	.356	.669
7	Phillies	.448	1946	69	85	155	5,233	560	1,351	209	40	80	516	418	19	590	41		5,772	1,880	329	102	102	.258	.315	.359	.675
8	White Sox	.481	1946	74	80	155	5,312	562	1,364	206	44	37	515	499	20	602	78	64	5,909	1,769	287	78	134	.257	.323	.333	.656
9	Senators	.494	1946	76	78	155	5,337	608	1,388	260	63	60	554	512	24	638	51	50	5,959	1,954	383	86	115	.260	.328	.366	.694
10	Braves	.529	1946	81	72	154	5,225	630	1,377	238	48	44	596	558	22	466	60		5,940	1,843	330	135	111	.264	.337	.353	.690
11	Cubs	.536	1946	82	71	155	5,298	626	1,344	223	50	56	566	586	24	599	43		6,024	1,835	329	116	130	.254	.331	.346	.677
12	Yankees	.565	1946	87	67	154	5,139	684	1,275	208	50	136	649	626	33	705	48	35	5,878	1,991	394	80	106	.248	.334	.387	.721
13	Tigers	.597	1946	92	62	155	5,318	704	1,373	212	41	108	644	624	13	616	65	41	6,059	1,991	361	104	125	.258	.338	.374	.712
14	Dodgers	.615	1946	96	60	157	5,285	701	1,376	233	66	55	642	693	17	575	100		6,136	1,906	354	141	103	.260	.348	.361	.709
15	Cardinals	.628	1946	98	58	156	5,372	712	1,426	265	56	81	665	530	21	537	58		6,020	2,046	402	97	90	.265	.334	.381	.715
16	Red Sox	.675	1946	104	50	156	5,318	792	1,441	268	50	109	737	687	15	661	45	36	6,126	2,136	427	106	133	.271	.356	.402	.758