The San Francisco Giants have a record of 11580-10047 in losses all-time.

	TEAM	REC	L	SEASON	W%	W	L%	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	Gothams	46-50	50	1883	.479	46	.521	98	3,524	530	900	139	69	24	371	127		297			3,651	1,249	232					.255		.354
2	Gothams	62-50	50	1884	.554	62	.446	116	4,124	693	1,053	149	68	22	497	249		492			4,373	1,404	239					.255		.340
3	Gothams	85-27	27	1885	.759	85	.241	112	4,029	691	1,085	150	82	16	464	221		312			4,250	1,447	248					.269		.359
4	Giants	75-44	44	1886	.630	75	.370	124	4,298	692	1,156	175	68	21	527	237		410	155		4,535	1,530	264					.269		.356
5	Giants	68-55	55	1887	.553	68	.447	129	4,516	816	1,259	167	93	48	651	361	47	326	415		4,924	1,756	308					.279	.339	.389	.727
6	Giants	84-47	47	1888	.641	84	.359	138	4,747	659	1,149	130	76	55	489	270	29	456	314		5,046	1,596	261					.242	.287	.336	.623
7	Giants	83-43	43	1889	.659	83	.341	131	4,671	935	1,319	208	77	52	744	538	27	386	292		5,236	1,837	337					.282	.360	.393	.753
8	Giants	63-68	68	1890	.481	63	.519	135	4,832	713	1,250	208	89	25	563	350	50	477	289		5,232	1,711	322					.259	.315	.354	.669
9	Giants	71-61	61	1891	.538	71	.462	136	4,833	754	1,271	189	72	46	630	438	36	394	224		5,307	1,742	307					.263	.329	.360	.689
10	Giants	71-80	80	1892	.470	71	.530	153	5,291	811	1,329	173	85	39	645	510	34	474	301		5,835	1,789	297					.251	.321	.338	.659
11	Giants	68-64	64	1893	.515	68	.485	136	4,858	941	1,424	182	101	61	768	504	56	280	299		5,418	1,991	344					.293	.366	.410	.776
12	Giants	88-44	44	1894	.667	88	.333	139	4,879	962	1,469	199	96	45	806	489	33	219	326		5,481	1,995	340	80				.301	.369	.409	.778
13	Giants	66-65	65	1895	.504	66	.496	132	4,605	852	1,324	191	90	32	699	454	30	292	292		5,127	1,791	313	38				.288	.355	.389	.744
14	Giants	64-67	67	1896	.489	64	.511	133	4,661	829	1,383	159	87	40	720	439	54	271	274		5,226	1,836	286	72				.297	.364	.394	.758
15	Giants	83-48	48	1897	.634	83	.366	138	4,871	901	1,452	188	84	31	760	412	67	330	332		5,395	1,901	303	45				.298	.361	.390	.751
16	Giants	77-73	73	1898	.513	77	.487	157	5,349	837	1,422	190	86	34	712	428	69	369	214		5,907	1,886	310	61				.266	.328	.353	.681
17	Giants	60-90	90	1899	.400	60	.600	153	5,125	741	1,441	165	66	23	612	389	46	357	235		5,621	1,807	254	61				.281	.337	.353	.690
18	Giants	60-78	78	1900	.435	60	.565	141	4,724	713	1,317	177	61	23	564	369	56	345	236		5,229	1,685	261	80				.279	.338	.357	.695
19	Giants	52-85	85	1901	.380	52	.620	141	4,839	544	1,225	167	46	19	458	303	45	578	133		5,260	1,541	232	73				.253	.303	.318	.622
20	Giants	48-88	88	1902	.353	48	.647	141	4,632	405	1,097	147	34	6	338	254	40	544	187		5,034	1,330	187	108				.237	.282	.287	.570
21	Giants	84-55	55	1903	.604	84	.396	142	4,741	729	1,290	181	49	20	570	379	92	465	264		5,397	1,629	250	185				.272	.338	.344	.681
22	Giants	106-47	47	1904	.693	106	.307	158	5,150	744	1,347	202	65	31	564	434	79	459	283		5,828	1,772	298	165				.262	.328	.344	.673
23	Giants	105-48	48	1905	.686	105	.314	155	5,094	778	1,392	191	88	39	642	517	90	497	291		5,839	1,876	318	138				.273	.351	.368	.719
24	Giants	96-56	56	1906	.632	96	.368	153	4,768	625	1,217	162	53	14	513	563	71	531	288		5,556	1,527	229	154				.255	.343	.320	.663
25	Giants	82-71	71	1907	.536	82	.464	155	4,874	573	1,222	160	48	23	475	516	69	508	205		5,624	1,547	231	165				.251	.331	.317	.648
	Total	11580-10047	10,047		.535	11,580	.465	21,790	743,630	100,728	195,569	31,373	7,040	15,601	90,197	68,365	5,685	99,739	16,533	3,148	832,371	287,825	54,014	11,669	3,022	4,019	10,197	.263	.329	.387	.716