what was the worst record in a september for the any team since 1900

Since 1900, the St. Louis Cardinals and the Chicago White Sox are tied for the worst record in a month in the month of September, with a record of 0-4 in September 1918.

	TEAM	REC	MONTH	W%	G	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	Cardinals	0-4	September 1918	.000	4	0	4	128	11	32	7	4	0		6	0	11	1		138	47	11	4				.250	.284	.367	.651
2	White Sox	0-3	September 1918	.000	3	0	3	111	13	33	7	3	0		6	1	3	0		121	46	10	3				.297	.339	.414	.753
3	Rangers	3-23	September 1972	.115	26	3	23	814	53	149	22	5	5	48	65	2	158	22	11	894	196	32	6	7	1	12	.183	.243	.241	.484
4	Reds	4-26	September 1914	.133	31	4	26	990	82	225	21	9	1	66	84	12	155	37		1,113	267	31	27				.227	.296	.270	.565
5	Orioles	4-24	September 2002	.143	28	4	24	946	82	201	49	4	23	80	64	12	187	18	6	1,034	327	76	6	6	2	19	.212	.269	.346	.615
6	Tigers	4-22	September 1996	.154	26	4	22	896	118	222	33	3	32	113	89	2	249	13	5	1,010	357	68	11	12	3	14	.248	.313	.398	.712
7	Superbas	4-22	September 1905	.154	29	4	22	927	82	215	31	11	7		66	8	123	38		1,017	289	49	16				.232	.289	.312	.600
8	Athletics	5-27	September 1915	.156	33	5	27	1,082	113	229	38	24	5		76	5	161	23		1,183	330	67	20				.212	.267	.305	.572
9	Rockies	4-21	September 2025	.160	25	4	21	818	81	183	31	2	22	79	53	6	260	16	5	890	284	55	5	8	0	17	.224	.273	.347	.621
10	Blue Jays	4-21	September 1978	.160	25	4	21	821	62	172	27	7	15	59	61	4	104	6	3	893	258	49	5	2	4	26	.210	.267	.314	.581
11	Highlanders	4-21	September 1912	.160	25	4	21	838	101	229	28	16	1	85	68	8		44		944	292	45	30				.273	.334	.348	.682
12	Braves	5-25	September 1935	.167	30	5	25	1,042	101	263	45	5	12	93	65	2	89	8		1,127	354	62	18				.252	.298	.340	.637
13	Indians	4-20	September 1928	.167	24	4	20	806	80	212	46	11	2	75	51	8	61	11		881	286	59	16				.263	.313	.355	.668
14	Cardinals	5-24	September 1916	.172	29	5	24	941	70	213	26	3	3		55	6	127	38		1,024	254	32	22				.226	.273	.270	.543
15	Cardinals	4-19	September 1913	.174	24	4	19	749	47	159	15	9	1		66	7	110	17		840	195	25	18				.212	.282	.260	.543
16	Orioles	5-23	September 1902	.179	30	5	23	1,025	144	256	47	12	10	111	90	15	11	26		1,143	357	69	13				.250	.319	.348	.668
17	Pirates	4-18	September 1952	.182	22	4	18	747	60	160	21	6	16	57	70	3	111	5	5	828	241	43	8			15	.214	.284	.323	.607
18	Browns	4-18	September 1949	.182	22	4	18	698	71	160	27	1	12	65	91	3	110	9		804	225	40	12			24	.229	.321	.322	.643
19	Phillies	6-27	September 1939	.182	33	6	27	1,077	100	260	39	11	14	89	87	1	116	17		1,190	363	64	25			34	.241	.299	.337	.636
20	Red Sox	4-18	September 1926	.182	22	4	18	738	66	178	28	6	5	62	70	3	61	8		830	233	39	19				.241	.309	.316	.625
21	Superbas	6-27	September 1908	.182	33	6	27	1,077	70	211	23	11	6		62	9		13		1,143	274	40	27				.196	.246	.254	.500
22	Pirates	5-22	September 1998	.185	27	5	22	882	73	190	36	3	14	70	69	11	194	25	6	978	274	53	9	7	2	15	.215	.279	.311	.589
23	Braves	5-22	September 1931	.185	27	5	22	952	91	263	41	6	2	81	45	0	80	8		1,020	322	49	23				.276	.309	.338	.647
24	Terrapins	6-26	September 1915	.188	32	6	26	1,051	93	241	30	6	4	80	69	9		30		1,159	295	40	30				.229	.283	.281	.563
25	Giants	5-21	September 2018	.192	26	5	21	867	69	183	28	4	17	67	50	4	270	18	5	931	270	49	6	4	4	22	.211	.256	.311	.568