what was the best record in a season for the cubs

The Chicago White Stockings had their best record in a season in 1880, with a record of 67-17.

	TEAM	REC	SEASON	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	White Stockings	67-17	1880	.798	86	67	17	3,135	538	876	164	39	4	378	104		217			3,239	1,130	207					.279		.360
2	White Stockings	52-14	1876	.788	66	52	14	2,748	624	926	131	32	8	441	70		45			2,818	1,145	171					.337		.417
3	White Stockings	87-25	1885	.777	113	87	25	4,093	834	1,079	184	75	54	606	340		429			4,433	1,575	313					.264		.385
4	Cubs	116-36	1906	.763	155	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
5	White Stockings	90-34	1886	.726	126	90	34	4,378	900	1,223	198	87	53	673	460		513	213		4,838	1,754	338					.279		.401
6	Cubs	107-45	1907	.704	155	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
7	Cubs	104-49	1909	.680	155	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	104-50	1910	.675	154	104	50	4,977	711	1,333	219	84	34	586	542	39	501	173		5,792	1,822	337	234				.268	.344	.366	.710
9	White Stockings	56-28	1881	.667	84	56	28	3,114	550	918	157	36	12	400	140		224			3,254	1,183	205					.295		.380
10	White Stockings	55-29	1882	.655	84	55	29	3,225	604	892	209	54	15	451	142		262			3,367	1,254	278					.277		.389
11	Cubs	84-45	1918	.651	131	84	45	4,325	538	1,147	164	53	21	438	358	27	343	159		4,900	1,480	238	190				.265	.325	.342	.667
12	Cubs	100-54	1935	.649	154	100	54	5,486	847	1,581	303	62	88	782	464	33	471	66		6,133	2,272	453	150			115	.288	.347	.414	.761
13	Cubs	98-54	1929	.645	156	98	54	5,471	982	1,655	310	46	139	933	589	29	567	103		6,252	2,474	495	163				.303	.373	.452	.825
14	Cubs	99-55	1908	.643	158	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
15	Cubs	103-58	2016	.640	162	103	58	5,503	808	1,409	293	30	199	767	656	96	1,339	66	34	6,334	2,359	522	42	37	45	107	.256	.343	.429	.772
16	Cubs	98-56	1945	.636	155	98	56	5,298	735	1,465	229	52	57	674	555	32	462	69		6,035	1,969	338	150			93	.277	.349	.372	.720
17	Colts	83-53	1890	.610	139	83	53	4,891	847	1,271	147	60	67	653	516	46	514	329		5,453	1,739	274					.260	.336	.356	.692
18	Cubs	93-60	1904	.608	156	93	60	5,210	597	1,294	157	62	22	470	298	48	470	227		5,695	1,641	241	139				.248	.295	.315	.610
19	Colts	82-53	1891	.607	137	82	53	4,873	832	1,231	159	88	60	684	526	50	457	238		5,449	1,746	307					.253	.332	.358	.690
20	Cubs	91-59	1912	.607	152	91	59	5,048	756	1,398	245	91	42	656	560	40	615	164		5,830	1,951	378	182				.277	.354	.386	.740
21	Cubs	93-61	1937	.604	154	93	61	5,349	811	1,537	253	74	96	762	538	22	496	71		6,028	2,226	423	119			120	.287	.355	.416	.771
22	Cubs	97-64	2008	.602	161	97	64	5,588	855	1,552	329	21	184	811	636	50	1,186	87	34	6,384	2,475	534	65	45	48	134	.278	.354	.443	.797
23	White Stockings	59-39	1883	.602	98	59	39	3,658	679	1,000	277	61	13	467	129		399			3,787	1,438	351					.273		.393
24	Cubs	92-61	1905	.601	155	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
25	Cubs	97-65	2015	.599	162	97	65	5,491	689	1,341	272	30	171	657	567	74	1,518	95	37	6,199	2,186	473	32	35	47	101	.244	.321	.398	.719