highest run differential in a season by team with less than 70 wins between 1900 to 1980

Between the 1900 and 1980 seasons, the Pittsburgh Pirates had the highest run differential by a team with fewer than 70 wins in a season, with a differential of 54 runs in 1918.

	TEAM	DIFF	W	SEASON	L	W%	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Pirates	54	65	1918	60	.520	126	4,091	466	1,016	107	72	15	391	371	25	285	200		4,667	1,312	194	180				.248	.315	.321	.635
2	Beaneaters	39	66	1900	72	.478	142	4,952	778	1,403	163	68	48	676	395	45	270	182		5,499	1,846	279	107				.283	.342	.373	.715
3	Orphans	38	68	1902	69	.496	143	4,870	543	1,224	133	40	6	434	358	44	566	229		5,428	1,455	179	156				.251	.308	.299	.607
4	Reds	34	68	1918	60	.531	129	4,265	530	1,185	165	84	15	447	304	31	303	128		4,762	1,563	264	162				.278	.330	.366	.697
5	Tigers	28	65	1903	71	.478	137	4,582	567	1,229	162	91	12	451	292	46	524	128		5,090	1,609	265	170				.268	.318	.351	.670
6	Yankees	19	60	1918	63	.488	126	4,224	493	1,085	160	45	20	406	367	23	370	92		4,783	1,395	225	169				.257	.320	.330	.650
7	Bronchos	19	69	1902	67	.507	137	4,840	686	1,401	248	68	33	582	308	35	353	140		5,303	1,884	349	120				.289	.336	.389	.726
8	White Sox	14	57	1918	67	.460	124	4,132	457	1,057	136	55	8	375	375	27	358	119		4,695	1,327	199	161				.256	.322	.321	.643
9	Giants	13	69	1972	86	.445	155	5,245	662	1,281	211	36	150	600	480	30	964	123	45	5,858	2,014	397	64	39	42	107	.244	.309	.384	.693
10	Robins	12	69	1919	71	.493	141	4,844	525	1,272	167	66	25	452	258	28	405	112		5,283	1,646	258	153				.263	.304	.340	.644
11	Red Sox	12	66	1919	71	.482	138	4,548	564	1,188	181	49	33	495	471	45	411	108		5,254	1,566	263	190				.261	.336	.344	.681
12	Orioles	11	68	1901	65	.511	135	4,589	761	1,348	179	111	24	633	369	52	373	207		5,111	1,821	314	101				.294	.353	.397	.750
13	Reds	5	66	1907	87	.431	156	4,966	524	1,226	126	90	15	443	372	34	535	158		5,568	1,577	231	196				.247	.304	.318	.621
14	Dodgers	-3	69	1938	80	.463	151	5,142	704	1,322	225	79	61	647	611	20	615	66		5,853	1,888	365	80			118	.257	.338	.367	.705
15	Cardinals	-4	65	1900	75	.464	142	4,877	744	1,420	141	81	36	602	406	81	318	243		5,444	1,831	258	80				.291	.356	.375	.731
16	Yankees	-5	69	1915	83	.454	154	4,982	583	1,162	167	50	31	459	570	44	669	198	133	5,764	1,522	248	168				.233	.317	.305	.623
17	Braves	-6	67	1945	85	.441	154	5,441	721	1,453	229	25	101	668	522	26	511	82		6,080	2,035	355	91			107	.267	.334	.374	.708
18	Cardinals	-10	65	1924	89	.422	154	5,349	740	1,552	270	87	67	672	382	33	418	86	86	5,909	2,197	424	145				.290	.341	.411	.752
19	Superbas	-18	65	1913	84	.436	152	5,165	595	1,394	193	86	39	502	361	31	555	188	149	5,704	1,876	318	147				.270	.321	.363	.685
20	Cubs	-21	67	1916	86	.438	156	5,179	520	1,237	194	56	46	456	399	34	662	133		5,778	1,681	296	166				.239	.298	.325	.622
21	Browns	-22	58	1918	64	.475	123	4,019	426	1,040	152	40	5	360	397	35	340	139		4,627	1,287	197	176				.259	.331	.320	.651
22	White Sox	-23	68	1910	85	.444	156	5,024	456	1,058	115	58	7	351	403	44	648	183		5,660	1,310	180	189				.211	.275	.261	.536
23	Browns	-23	69	1907	83	.454	155	5,224	537	1,324	154	63	10	433	370	39	548	144		5,784	1,634	227	151				.253	.308	.313	.620
24	Beaneaters	-23	69	1901	69	.500	140	4,746	533	1,180	135	36	28	449	303	34	518	158		5,218	1,471	199	135				.249	.298	.310	.608
25	Browns	-25	65	1903	74	.468	139	4,639	500	1,133	166	68	12	408	271	26	541	101		5,047	1,471	246	111				.244	.290	.317	.607