most amount of grand slams in one game all-time

6 players are tied for the most grand slams in a game, with 2 grand slams. The first three are Josh Willingham on July 27, 2009, Bill Mueller on July 29, 2003 and Nomar Garciaparra on May 10, 1999.

Interpreted as:

most amount of grand slams by a player in one regular-season game all-time

	NAME	GRANDSLAM	DATE	TM		OPP	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP
1	Josh Willingham J. Willingham	2	7/27/2009	WSH	@	MIL	5	2	3	1	0	2	8	0	0	1	0	0	5	10	3	0	0	0	0
2	Bill Mueller B. Mueller	2	7/29/2003	BOS	@	TEX	5	3	3	0	0	3	9	0	0	0	0	0	5	12	3	0	0	0	0
3	Nomar Garciaparra N. Garciaparra	2	5/10/1999	BOS	vs	SEA	4	3	3	0	0	3	10	1	0	0	0	0	5	12	3	0	0	0	0
4	Fernando Tatis F. Tatis	2	4/23/1999	STL	@	LAD	5	2	2	0	0	2	8	0	0	2	0	0	5	8	2	0	0	0	0
5	Chris Hoiles C. Hoiles	2	8/14/1998	BAL	@	CLE	5	2	3	0	0	2	8	0	0	1	0	0	5	9	2	0	0	0	0
6	Robin Ventura R. Ventura	2	9/4/1995	CWS	@	TEX	5	3	3	1	0	2	8	1	0	0	0	0	6	10	3	0	0	0	0
7	Alejandro Kirk A. Kirk	1	9/28/2025	TOR	vs	TBR	5	2	3	1	0	2	6	0	0	1	0	0	5	10	3	0	0	0	0
8	Fernando Tatis Jr. F. Tatis Jr.	1	9/26/2025	SDP	vs	AZ	5	1	1	0	0	1	4	0	0	3	0	0	5	4	1	0	0	0	0
9	Seiya Suzuki S. Suzuki	1	9/26/2025	CHC	vs	STL	4	1	1	0	0	1	4	0	0	1	0	0	4	4	1	0	0	0	0
10	Daulton Varsho D. Varsho	1	9/25/2025	TOR	vs	BOS	4	1	2	0	0	1	4	0	0	1	0	0	4	5	1	0	0	0	0
11	Ryan O'Hearn R. O'Hearn	1	9/23/2025	SDP	vs	MIL	4	1	2	0	0	1	4	0	0	0	0	0	4	5	1	0	0	0	0
12	J.P. Crawford	1	9/21/2025	SEA	@	HOU	4	1	1	0	0	1	4	0	0	1	0	0	4	4	1	0	0	0	0
13	Ben Rice B. Rice	1	9/21/2025	NYY	@	BAL	5	1	4	1	0	1	5	0	0	0	0	0	5	8	2	0	0	0	0
14	Jeremy Peña J. Peña	1	9/20/2025	HOU	vs	SEA	4	1	2	0	0	1	4	1	0	0	0	0	5	5	1	0	0	0	0
15	Everson Pereira E. Pereira	1	9/19/2025	TBR	vs	BOS	5	1	1	0	0	1	4	0	0	3	0	0	5	4	1	0	0	0	0
16	Manny Machado M. Machado	1	9/17/2025	SDP	@	NYM	5	1	3	0	0	1	4	0	0	0	1	0	5	6	1	0	0	0	0
17	Nick Kurtz N. Kurtz	1	9/13/2025	ATH	vs	CIN	5	1	1	0	0	1	4	0	0	2	0	0	5	4	1	0	0	0	0
18	Patrick Bailey P. Bailey	1	9/12/2025	SFG	vs	LAD	4	1	1	0	0	1	4	0	0	2	0	0	4	4	1	0	0	0	0
19	Mookie Betts M. Betts	1	9/10/2025	LAD	vs	COL	5	1	4	1	0	1	5	0	0	0	0	0	5	8	2	0	0	0	0
20	Michael Helman M. Helman	1	9/8/2025	TEX	vs	MIL	3	1	2	1	0	1	5	0	0	0	0	0	3	6	2	0	0	0	0
21	Trent Grisham T. Grisham	1	9/2/2025	NYY	@	HOU	4	2	2	0	0	1	4	0	0	1	0	0	4	5	1	0	0	0	0
22	Juan Soto J. Soto	1	9/1/2025	NYM	@	DET	3	2	2	0	1	1	6	2	0	1	0	1	5	7	2	0	0	0	0
23	Brandon Lowe B. Lowe	1	8/31/2025	TBR	@	WSH	4	1	1	0	0	1	4	0	0	2	0	0	4	4	1	0	0	0	0
24	Trent Grisham T. Grisham	1	8/29/2025	NYY	@	CWS	4	2	1	0	0	1	4	1	0	3	1	0	5	4	1	0	0	0	0
25	Miguel Vargas M. Vargas	1	8/28/2025	CWS	vs	NYY	2	1	1	0	0	1	4	0	0	0	0	0	2	4	1	0	0	0	0