Robin Ventura has crushed the most career grand slams by a left-hander, with 18 grand slams.

	NAME	GRANDSLAM	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	Robin Ventura R. Ventura	18	2,079	7,064	1,006	1,885	338	14	294	1,182	1,075	23	1,179	24	38	8,271	3,133	646	33	76	132	177	.267	.362	.444	.806
2	Ryan Howard R. Howard	15	1,572	5,707	848	1,475	277	21	382	1,194	709	59	1,843	12	5	6,530	2,940	680	0	55	154	116	.258	.343	.515	.859
3	Ken Griffey Jr. K. Griffey Jr.	15	2,671	9,801	1,662	2,781	524	38	630	1,836	1,312	81	1,779	184	69	11,304	5,271	1,192	8	102	246	199	.284	.370	.538	.907
4	Jason Giambi J. Giambi	14	2,260	7,267	1,227	2,010	405	9	440	1,441	1,366	180	1,572	20	12	8,908	3,753	854	2	93	97	166	.277	.399	.516	.916
5	Carlos Delgado C. Delgado	13	2,035	7,283	1,241	2,038	483	18	473	1,512	1,109	172	1,745	14	8	8,657	3,976	974	0	93	186	152	.280	.383	.546	.929
6	Harold Baines H. Baines	13	2,830	9,908	1,299	2,866	488	49	384	1,628	1,062	14	1,441	34	34	11,092	4,604	921	9	99	187	298	.289	.356	.465	.820
7	Travis Hafner T. Hafner	12	1,183	4,058	619	1,107	250	13	213	731	598	90	976	11	7	4,775	2,022	476	0	29	81	86	.273	.376	.498	.874
8	Adam Dunn A. Dunn	12	2,001	6,883	1,097	1,631	334	10	462	1,168	1,317	86	2,379	63	25	8,328	3,371	806	2	40	122	100	.237	.364	.490	.854
9	Matt Stairs M. Stairs	12	1,895	5,204	770	1,366	294	13	265	899	717	57	1,122	30	24	6,023	2,481	572	5	40	59	109	.262	.356	.477	.832
10	Rafael Palmeiro R. Palmeiro	12	2,831	10,472	1,663	3,020	585	38	569	1,834	1,353	87	1,348	97	40	12,046	5,388	1,192	15	119	172	232	.288	.371	.515	.885
11	Brian McCann B. McCann	11	1,755	6,067	742	1,590	294	5	282	1,018	640	75	1,054	25	9	6,850	2,740	581	9	59	71	180	.262	.337	.452	.789
12	Robinson Cano R. Cano	11	2,267	8,773	1,262	2,639	572	33	335	1,306	620	85	1,214	51	38	9,550	4,282	940	10	62	112	286	.301	.351	.488	.839
13	David Ortiz D. Ortiz	11	2,408	8,640	1,419	2,472	632	19	541	1,768	1,319	38	1,750	17	9	10,091	4,765	1,192	2	92	209	236	.286	.380	.552	.931
14	Raul Ibanez R. Ibanez	11	2,161	7,471	1,055	2,034	424	51	305	1,207	713	29	1,374	50	29	8,278	3,475	780	2	63	83	166	.272	.335	.465	.801
15	Tino Martinez T. Martinez	11	2,023	7,111	1,009	1,925	365	21	339	1,271	780	59	1,069	27	20	8,044	3,349	725	14	80	102	191	.271	.344	.471	.815
16	Barry Bonds B. Bonds	11	2,986	9,847	2,227	2,935	601	77	762	1,996	2,558	106	1,539	514	141	12,606	5,976	1,440	4	91	688	165	.298	.444	.607	1.051
17	Curtis Granderson C. Granderson	10	2,057	7,236	1,217	1,800	346	95	344	937	924	67	1,916	153	50	8,306	3,368	785	30	49	31	64	.249	.337	.465	.803
18	Ryan Klesko R. Klesko	10	1,736	5,611	874	1,564	343	33	278	987	817	29	1,077	91	41	6,516	2,807	654	4	55	84	125	.279	.370	.500	.870
19	Mo Vaughn M. Vaughn	10	1,512	5,532	861	1,620	270	10	328	1,064	725	108	1,429	30	18	6,410	2,894	608	0	45	144	135	.293	.383	.523	.906
20	Steve Finley S. Finley	10	2,583	9,397	1,443	2,548	449	124	304	1,167	844	53	1,299	320	118	10,460	4,157	877	91	75	69	152	.271	.332	.442	.775
21	Reggie Jackson R. Jackson	10	2,820	9,864	1,551	2,584	463	49	563	1,702	1,376	96	2,596	228	115	11,417	4,834	1,075	13	68	164	183	.262	.356	.490	.846
22	Cody Bellinger C. Bellinger	9	1,093	3,982	655	1,038	204	26	212	651	441	19	921	100	24	4,483	1,930	442	0	41	58	56	.261	.334	.485	.819
23	Matt Olson M. Olson	9	1,156	4,231	666	1,079	232	5	276	774	578	54	1,161	8	2	4,893	2,149	513	0	30	46	101	.255	.350	.508	.858
24	Jay Bruce J. Bruce	9	1,650	5,964	839	1,455	312	32	319	951	600	28	1,572	65	40	6,641	2,788	663	3	46	71	101	.244	.314	.467	.781
25	Bobby Abreu B. Abreu	9	2,425	8,480	1,453	2,470	574	59	288	1,363	1,476	33	1,840	400	128	10,081	4,026	921	7	85	115	165	.291	.395	.475	.870