which mlb team had the worst run differential season between 1900 to 1950

Between the 1900 and 1950 seasons, the Boston Red Sox had the lowest run differential by a team in a season, with a differential of -345 runs in 1932.

	TEAM	DIFF	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	GIDP	AVG	OBP	SLG	OPS
1	Red Sox	-345	1932	154	.279	43	111	5,294	566	1,330	253	57	53	529	470	12	537	46	46	5,856	1,856	363	80		.251	.314	.351	.664
2	Athletics	-344	1915	154	.283	43	109	5,081	545	1,204	183	72	16	440	436	54	634	127	89	5,708	1,579	271	137		.237	.304	.311	.615
3	Athletics	-331	1936	154	.346	53	100	5,373	714	1,443	240	60	72	663	525	19	592	59	43	5,991	2,019	372	74		.269	.336	.376	.712
4	Athletics	-329	1916	154	.235	36	117	5,010	447	1,212	169	65	19	380	406	30	631	151		5,603	1,568	253	157		.242	.303	.313	.616
5	Rustlers	-322	1911	156	.291	44	107	5,308	699	1,417	249	54	37	594	554	31	577	169		6,044	1,885	340	151		.267	.340	.355	.695
6	Phillies	-316	1945	154	.299	46	108	5,203	548	1,278	197	27	56	503	449	15	501	54		5,738	1,697	280	71	113	.246	.307	.326	.634
7	Athletics	-311	1939	153	.362	55	97	5,309	711	1,438	282	55	98	667	503	15	531	60	34	5,965	2,124	435	138	121	.271	.336	.400	.736
8	Phillies	-309	1942	151	.278	42	109	5,060	394	1,174	168	37	44	356	392	16	487	37		5,557	1,548	249	89	109	.232	.289	.306	.595
9	Browns	-308	1937	156	.299	46	108	5,510	715	1,573	327	44	71	682	514	14	510	30	27	6,123	2,201	442	85		.285	.348	.399	.747
10	Senators	-306	1904	157	.252	38	113	5,149	437	1,170	171	57	10	348	283	59	756	150		5,606	1,485	238	115		.227	.275	.288	.564
11	Phillies	-303	1939	152	.298	45	106	5,133	553	1,341	232	40	49	510	421	9	486	47		5,707	1,800	321	144	133	.261	.318	.351	.669
12	Browns	-302	1939	156	.279	43	111	5,422	733	1,453	242	50	91	696	558	20	606	48	38	6,132	2,068	383	132	121	.268	.339	.381	.720
13	Phillies	-302	1921	154	.331	51	103	5,329	617	1,512	238	50	88	573	294	25	615	66	80	5,760	2,114	376	112		.284	.324	.397	.721
14	Superbas	-301	1905	155	.316	48	104	5,100	506	1,255	154	60	29	430	327	41	606	186		5,604	1,616	243	136		.246	.297	.317	.614
15	Phillies	-296	1928	152	.283	43	109	5,234	660	1,396	257	47	85	606	503	21	510	53		5,917	2,002	389	159		.267	.333	.382	.716
16	Phillies	-292	1941	155	.279	43	111	5,233	501	1,277	188	38	64	467	451	22	595	65		5,796	1,733	290	90	142	.244	.307	.331	.638
17	Phillies	-290	1938	151	.300	45	105	5,192	550	1,318	233	29	40	503	423	12	507	38		5,713	1,729	302	86	129	.254	.312	.333	.645
18	Browns	-289	1910	158	.305	47	107	5,077	454	1,105	131	60	12	347	415	36	841	169		5,671	1,392	203	143		.218	.281	.274	.556
19	Senators	-284	1949	154	.325	50	104	5,234	584	1,330	207	41	81	546	593	22	494	46	33	5,912	1,862	329	63	132	.254	.333	.356	.688
20	Athletics	-283	1919	140	.257	36	104	4,730	459	1,156	175	71	35	396	349	30	565	103		5,234	1,578	281	125		.244	.300	.334	.634
21	Cardinals	-282	1903	139	.314	43	94	4,689	505	1,176	138	65	8	404	277	34	522	171		5,096	1,468	211	96		.251	.297	.313	.610
22	Red Sox	-281	1925	152	.309	47	105	5,168	640	1,376	257	64	41	591	509	29	421	42	56	5,840	1,884	362	134		.266	.335	.365	.700
23	Braves	-278	1924	154	.346	53	100	5,283	520	1,355	194	52	25	459	354	26	451	74	68	5,767	1,728	271	104		.256	.306	.327	.633
24	Braves	-277	1935	153	.248	38	115	5,309	575	1,396	233	33	75	544	353	19	436	20		5,761	1,920	341	80	139	.263	.311	.362	.673
25	Red Sox	-275	1926	154	.301	46	107	5,193	561	1,326	248	54	32	525	474	32	441	52	47	5,867	1,778	334	168		.255	.321	.342	.664