The Pittsburgh Pirates have a 10851-10843 record all-time.

	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	Alleghenys	39-39	1882	.500	79	39	39	2,889	426	725	106	59	18		92		183			2,981	1,003	183					.251		.347
2	Alleghenys	31-67	1883	.316	98	31	67	3,607	525	892	120	58	13		164		345			3,771	1,167	191					.247		.324
3	Alleghenys	30-78	1884	.278	110	30	78	3,689	406	777	105	50	2		143	41	411			3,873	988	157					.211	.248	.268	.516
4	Alleghenys	56-55	1885	.505	111	56	55	3,975	547	955	123	79	5	371	189	44	537			4,208	1,251	207					.240	.282	.315	.597
5	Alleghenys	80-57	1886	.584	140	80	57	4,854	810	1,171	186	96	16	563	478	38	713	260		5,370	1,597	298					.241	.314	.329	.643
6	Alleghenys	55-69	1887	.444	125	55	69	4,414	621	1,141	183	78	20	479	319	38	381	221		4,771	1,540	281					.258	.314	.349	.663
7	Alleghenys	66-68	1888	.493	139	66	68	4,713	534	1,070	150	49	14	390	194	46	583	287		4,953	1,360	213					.227	.264	.289	.553
8	Alleghenys	61-71	1889	.462	134	61	71	4,748	726	1,202	209	65	42	597	420	44	467	231		5,212	1,667	316					.253	.320	.351	.671
9	Alleghenys	23-113	1890	.169	138	23	113	4,739	597	1,088	160	43	20	426	408	66	460	208		5,213	1,394	223					.230	.300	.294	.594
10	Pirates	55-80	1891	.407	137	55	80	4,794	679	1,148	148	71	29	524	427	50	503	205		5,271	1,525	248					.239	.308	.318	.626
11	Pirates	80-73	1892	.523	155	80	73	5,469	802	1,288	143	108	38	600	435	44	453	222		5,948	1,761	289					.236	.297	.322	.619
12	Pirates	81-48	1893	.628	131	81	48	4,834	970	1,447	176	127	37	816	537	62	274	210		5,433	1,988	340					.299	.377	.411	.788
13	Pirates	65-65	1894	.500	133	65	65	4,700	965	1,465	223	125	48	812	444	68	210	257		5,375	2,082	396	163				.312	.379	.443	.822
14	Pirates	71-61	1895	.538	135	71	61	4,677	815	1,355	192	89	27	677	378	65	299	257		5,226	1,806	308	106				.290	.351	.386	.737
15	Pirates	66-63	1896	.512	131	66	63	4,701	787	1,371	169	94	27	667	387	58	286	217		5,254	1,809	290	108				.292	.353	.385	.738
16	Pirates	60-71	1897	.458	135	60	71	4,590	676	1,266	140	108	25	575	359	67	333	170		5,114	1,697	273	98				.276	.337	.370	.707
17	Pirates	72-76	1898	.486	152	72	76	5,087	634	1,313	140	88	14	520	336	74	339	107		5,638	1,671	242	141				.258	.313	.328	.642
18	Pirates	76-73	1899	.510	155	76	73	5,486	841	1,582	196	121	29	706	386	63	344	179		6,079	2,107	346	144				.288	.342	.384	.726
19	Pirates	79-60	1900	.568	140	79	60	4,817	733	1,312	185	100	26	602	327	63	319	174		5,317	1,775	311	110				.272	.327	.368	.695
20	Pirates	90-49	1901	.647	140	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
21	Pirates	103-36	1902	.741	142	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
22	Pirates	91-49	1903	.650	141	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
23	Pirates	87-66	1904	.569	156	87	66	5,160	675	1,333	164	102	15	523	391	47	516	178		5,714	1,746	281	116				.258	.316	.338	.655
24	Pirates	96-57	1905	.627	155	96	57	5,213	692	1,385	190	91	22	564	382	36	512	202		5,790	1,823	303	159				.266	.320	.350	.670
25	Pirates	93-60	1906	.608	154	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
	Total	10851-10843		.500	21,834	10,851	10,843	747,908	97,133	196,869	32,339	8,933	12,245	86,643	64,284	5,527	99,486	15,672	3,267	833,513	283,809	53,517	12,557	3,114	3,696	10,046	.263	.325	.379	.704