The San Francisco Giants had their most runs in a game in 2021 against the Reds on May 20, 2021, with 19 runs.

Interpreted as:

giants most runs scored in a regular-season game 2021

	TEAM	R	DATE	TM		OPP	RESULT	AB	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG	OPS
1	Giants	19	5/20/2021	SFG	@	CIN	W 19-4	43	16	2	0	4	17	6	2	10	0	0	51	30	6	0	0	0	0	.372	.471	.698	1.168
2	Giants	15	9/11/2021	SFG	@	CHC	W 15-4	37	13	3	0	2	15	11	1	9	0	0	50	22	5	0	1	1	1	.351	.500	.595	1.095
3	Giants	13	6/16/2021	SFG	vs	ARI	W 13-7	36	13	1	1	5	13	9	0	9	1	0	46	31	7	1	0	1	0	.361	.489	.861	1.350
4	Giants	12	9/7/2021	SFG	@	COL	W 12-3	38	15	7	2	1	12	5	1	4	0	0	44	29	10	0	0	0	3	.395	.477	.763	1.240
5	Giants	12	5/4/2021	SFG	@	COL	W 12-4	32	12	2	0	3	12	4	0	5	0	0	36	23	5	0	0	0	1	.375	.444	.719	1.163
6	Giants	12	4/26/2021	SFG	vs	COL	W 12-0	35	12	3	0	1	12	6	0	11	0	0	42	18	4	0	1	2	0	.343	.429	.514	.943
7	Giants	11	10/3/2021	SFG	vs	SDP	W 11-4	33	10	2	0	1	11	6	0	6	0	0	40	15	3	0	1	0	0	.303	.400	.455	.855
8	Giants	11	8/2/2021	SFG	@	ARI	W 11-8	39	10	1	1	3	11	5	0	11	0	0	45	22	5	1	0	1	0	.256	.341	.564	.905
9	Giants	11	7/2/2021	SFG	@	ARI	W 11-4	38	14	4	0	3	11	6	0	6	1	0	45	27	7	0	1	0	2	.368	.444	.711	1.155
10	Giants	11	6/20/2021	SFG	vs	PHI	W 11-2	40	15	3	0	4	10	3	0	11	0	0	43	30	7	0	0	0	0	.375	.419	.750	1.169
11	Giants	11	5/29/2021	SFG	@	LAD	W 11-6	40	16	5	0	2	11	5	1	11	1	1	48	27	7	1	1	3	0	.400	.468	.675	1.143
12	Giants	10	9/6/2021	SFG	@	COL	W 10-5	40	15	2	1	4	10	4	1	9	0	0	45	31	7	0	0	0	2	.375	.444	.775	1.219
13	Giants	10	7/10/2021	SFG	vs	WSH	W 10-4	37	14	3	0	1	10	6	0	10	1	0	46	20	4	1	2	0	0	.378	.444	.541	.985
14	Giants	10	6/17/2021	SFG	vs	ARI	W 10-3	36	15	5	2	1	10	2	2	5	0	0	42	27	8	1	1	0	1	.417	.463	.750	1.213
15	Giants	10	4/20/2021	SFG	@	PHI	W 10-7	35	11	1	0	5	10	4	0	7	0	0	40	27	6	1	0	0	2	.314	.385	.771	1.156
16	Giants	9	9/13/2021	SFG	vs	SDP	W 9-1	32	8	1	1	4	9	4	0	7	0	0	36	23	6	0	0	0	0	.250	.333	.719	1.052
17	Giants	9	8/7/2021	SFG	@	MIL	W 9-6	46	13	2	0	2	8	4	0	11	0	0	51	21	4	0	1	2	0	.283	.333	.457	.790
18	Giants	9	6/23/2021	SFG	@	LAA	W 9-3	49	11	2	0	2	8	6	0	19	1	0	55	19	4	0	0	1	0	.224	.309	.388	.697
19	Giants	9	6/15/2021	SFG	vs	ARI	W 9-8	35	11	1	1	2	9	4	0	5	0	0	39	20	4	0	0	0	1	.314	.385	.571	.956
20	Giants	9	6/8/2021	SFG	@	TEX	W 9-4	38	13	0	0	3	8	6	0	8	1	0	44	22	3	0	0	0	2	.342	.432	.579	1.011
21	Giants	8	9/22/2021	SFG	@	SDP	W 8-6	36	12	3	0	0	8	3	0	8	0	1	40	15	3	1	0	0	0	.333	.385	.417	.801
22	Giants	8	8/24/2021	SFG	@	NYM	W 8-0	41	15	1	0	4	8	2	0	8	0	0	44	28	5	1	0	0	0	.366	.395	.683	1.078
23	Giants	8	8/10/2021	SFG	vs	ARI	W 8-7	36	10	4	0	1	7	5	0	7	0	0	41	17	5	0	0	2	0	.278	.366	.472	.838
24	Giants	8	7/31/2021	SFG	vs	HOU	W 8-6	37	14	1	0	5	8	3	1	12	1	0	41	30	6	0	0	0	1	.378	.439	.811	1.250
25	Giants	8	6/4/2021	SFG	vs	CHC	W 8-5	33	10	1	0	4	8	6	0	9	0	1	39	23	5	0	0	0	1	.303	.410	.697	1.107