highest run differential per game in an mlb season from 1900 to 1909

Between the 1900 and 1909 seasons, the Pittsburgh Pirates had the highest run differential per game by a team in a season, with 2.35 in 1902.

	TEAM	DIFF/G	DIFF	G	SEASON	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	PA	TB	XBH	SH	AVG	OBP	SLG	OPS
1	Pirates	2.35	334	142	1902	.741	103	36	4,926	774	1,410	189	95	18	660	372	64	440	222	5,480	1,843	302	118	.286	.344	.374	.718
2	Cubs	2.08	323	155	1906	.763	116	36	5,018	704	1,316	181	71	20	539	448	45	516	283	5,742	1,699	272	231	.262	.328	.339	.667
3	Giants	1.76	273	155	1905	.686	105	48	5,094	778	1,392	191	88	39	642	517	90	497	291	5,839	1,876	318	138	.273	.351	.368	.719
4	Pirates	1.74	243	140	1901	.647	90	49	4,913	777	1,407	182	92	29	636	386	52	497	203	5,468	1,860	303	117	.286	.345	.379	.723
5	Giants	1.7	268	158	1904	.693	106	47	5,150	744	1,347	202	65	31	564	434	79	459	283	5,828	1,772	298	165	.262	.328	.344	.673
6	Pirates	1.64	253	154	1909	.724	110	42	5,128	701	1,332	218	92	25	585	479	36	511	185	5,860	1,809	335	217	.260	.327	.353	.680
7	Cubs	1.57	243	155	1909	.680	104	49	4,999	632	1,227	203	60	20	496	420	31	553	187	5,696	1,610	283	246	.245	.308	.322	.630
8	Cubs	1.45	225	155	1905	.601	92	61	5,108	667	1,249	157	82	12	522	448	61	511	267	5,810	1,606	251	193	.245	.313	.314	.627
9	Americans	1.44	203	141	1903	.659	91	47	4,919	708	1,336	222	113	48	609	262	36	559	141	5,365	1,928	383	148	.272	.313	.392	.705
10	White Sox	1.36	187	137	1901	.610	83	53	4,725	819	1,303	173	89	32	656	475	62	336	280	5,397	1,750	294	135	.276	.350	.370	.720
11	Pirates	1.26	178	141	1903	.650	91	49	4,988	793	1,429	208	110	34	650	364	50	400	172	5,511	1,959	352	109	.286	.341	.393	.734
12	Giants	1.25	197	157	1908	.636	98	56	5,006	652	1,339	182	43	20	562	494	76	378	181	5,826	1,667	245	250	.267	.342	.333	.675
13	Athletics	1.21	185	153	1909	.621	95	58	4,906	601	1,257	186	88	21	498	403	64	578	201	5,620	1,682	295	247	.256	.321	.343	.664
14	Cubs	1.17	181	155	1907	.704	107	45	4,892	571	1,224	162	48	13	450	435	48	449	235	5,570	1,521	223	195	.250	.318	.311	.628
15	Naps	1.16	182	157	1906	.582	89	64	5,425	664	1,514	240	73	12	548	330	41	563	203	5,987	1,936	325	191	.279	.325	.357	.682
16	Giants	1.14	162	142	1903	.604	84	55	4,741	729	1,290	181	49	20	570	379	92	465	264	5,397	1,629	250	185	.272	.338	.344	.681
17	Tigers	1.09	173	158	1909	.645	98	54	5,095	666	1,360	209	58	19	521	397	39	623	280	5,763	1,742	286	232	.267	.325	.342	.667
18	Americans	1.09	151	138	1901	.581	79	57	4,866	759	1,353	183	104	37	632	331	47	281	157	5,349	1,855	324	105	.278	.330	.381	.711
19	Naps	1.07	165	154	1904	.570	86	65	5,152	647	1,340	225	90	27	553	307	46	717	178	5,669	1,826	342	164	.260	.308	.354	.662
20	Superbas	1.05	144	137	1901	.581	79	57	4,879	744	1,399	206	93	32	633	312	41	446	178	5,312	1,887	331	80	.287	.335	.387	.722
21	Cubs	1.04	164	158	1908	.643	99	55	5,085	625	1,267	196	56	19	492	418	40	520	212	5,813	1,632	271	270	.249	.311	.321	.632
22	White Sox	1.04	164	158	1905	.605	92	60	5,114	614	1,213	200	55	11	487	439	58	613	194	5,852	1,556	266	241	.237	.305	.304	.609
23	Tigers	1.03	158	153	1907	.613	92	58	5,204	695	1,383	179	75	11	551	315	44	549	196	5,721	1,745	265	158	.266	.313	.335	.648
24	Pirates	1.03	158	154	1906	.608	93	60	5,030	622	1,313	164	67	12	497	424	42	385	162	5,686	1,647	243	190	.261	.324	.327	.651
25	Athletics	1.01	139	137	1902	.610	83	53	4,762	775	1,369	235	67	38	673	343	38	288	201	5,261	1,852	340	118	.287	.340	.389	.729