Willie McCovey has the most career games by a Giants first baseman, with 1,883 games.

Interpreted as:

most regular-season games as a giants first baseman

	NAME	G	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS	wRC	WRAA	wOBA	wRC+	BRAA
1	Willie McCovey W. McCovey	1,883	6,057	914	1,669	269	38	387	1,178	1,028	48	1,124	18	17	7,196	3,175	694	4	59	224	129	.276	.382	.524	.906	1213	439.1	.393	148	392.2
2	Bill Terry B. Terry	1,721	6,428	1,120	2,193	373	112	154	1,078	537	9	449	56		7,111	3,252	639	137				.341	.393	.506	.899	1265	365	.407	136	346.7
3	Brandon Belt B. Belt	1,310	4,390	628	1,146	267	36	175	584	617	46	1,205	47	21	5,079	2,010	478	1	25	35	59	.261	.356	.458	.814	739	145.3	.351	124	148
4	J.T. Snow	1,183	3,822	561	1,043	228	15	124	615	565	50	806	14	15	4,497	1,673	367	8	52	45	87	.273	.369	.438	.807	640	78	.353	113	74.6
5	Will Clark W. Clark	1,160	4,269	687	1,278	249	37	176	709	506	32	744	52	41	4,878	2,129	462	13	58	112	47	.299	.373	.499	.872	776	223.7	.378	143	236
6	Fred Merkle F. Merkle	1,105	3,831	504	1,042	192	57	49	512	312	32	476	212		4,261	1,495	298	86				.272	.332	.390	.722	533	77	.348	111	54.3
7	Roger Connor R. Connor	1,004	3,869	848	1,237	214	127	72	654	540	22	65	161		4,435	1,921	413	4				.320	.406	.497	.903	1020	354	.418	150	338.8
8	High Pockets Kelly H. Pockets Kelly	978	3,620	521	1,089	189	49	103	663	242	21	446	49		3,974	1,685	341	91				.301	.348	.465	.814	575	96.3	.373	119	96.2
9	Orlando Cepeda O. Cepeda	944	3,560	566	1,103	188	19	199	656	221	41	534	77	39	3,859	1,926	406	1	36	55	97	.310	.354	.541	.895	643	210.3	.386	140	185.2
10	Whitey Lockman W. Lockman	738	2,853	393	784	92	22	57	282	267	7	170	16	20	3,164	1,091	171	28	9	3	36	.275	.337	.382	.720	365	2.9	.332	93	-29.1
11	Dan McGann D. McGann	682	2,430	360	678	94	42	16	290	224	77	151	151		2,835	904	152	104				.279	.358	.372	.730	390	89.4	.356	120	63.3
12	Johnny Mize J. Mize	655	2,452	473	733	110	16	157	505	340	21	163	13		2,816	1,346	283	3			31	.299	.389	.549	.938	517	200.6	.430	154	177.7
13	Jack Doyle J. Doyle	492	1,896	293	585	104	19	8	330	139	13	58	160		2,059	751	131	11				.309	.360	.396	.756	327	18	.359	103	11.7
14	Sam Leslie S. Leslie	435	1,027	123	303	53	11	17	147	69	8	50	4		1,110	429	81	6				.295	.344	.418	.762	146	6	.351	108	10.9
15	Babe Young B. Young	427	1,496	203	415	70	9	52	252	170	10	94	8		1,686	659	131	10			28	.277	.355	.441	.796	240	45	.368	120	39.9
16	Johnny McCarthy J. McCarthy	423	1,150	134	317	45	9	22	166	74	5	84	6		1,244	446	76	15			7	.276	.322	.388	.710	140	-14.8	.328	92	-12.3
17	Aubrey Huff A. Huff	359	1,168	152	308	66	6	39	152	146	11	193	12	3	1,342	503	111	0	17	12	31	.264	.346	.431	.777	175	22.8	.340	115	24.9
18	Mike Ivie M. Ivie	336	1,023	114	287	50	7	42	172	93	3	166	9	3	1,130	477	99	2	9	15	23	.281	.340	.466	.806	157	29.4	.354	124	31.7
19	Travis Ishikawa T. Ishikawa	328	676	87	180	33	3	17	95	59	5	174	3	2	746	270	53	2	4	7	13	.266	.328	.399	.727	84	-3.7	.319	95	-4.7
20	LaMonte Wade Jr. L. Wade Jr.	302	904	121	220	38	4	26	94	159	11	220	4	1	1,089	344	68	7	8	9	8	.243	.360	.381	.741	143	12.3	.328	110	14.1
21	Rich Aurilia R. Aurilia	299	858	83	224	42	3	17	101	60	5	125	1	1	931	323	62	0	8	6	24	.261	.310	.376	.687	92	-21.6	.302	78	-26.2
22	Walter Holke W. Holke	277	970	109	269	33	13	3	94	50	7	96	33		1,060	337	49	33				.277	.317	.347	.665	109	6.6	.323	106	6.1
23	Fred Tenney F. Tenney	257	958	144	237	28	3	5	79	124	10	70	25		1,125	286	36	33				.247	.340	.299	.638	120	14.2	.320	105	5.3
24	Dave Bergman D. Bergman	253	406	54	110	16	2	13	51	61	1	50	7	1	474	169	31	4	2	8	10	.271	.366	.416	.782	65	12.3	.351	123	12.5
25	Phil Weintraub P. Weintraub	250	756	118	218	30	13	24	125	130	0	101	2		893	346	67	7			15	.288	.393	.458	.850	145	46.2	.400	135	37