Ultimate Grand Slams
A grand slam that comes in the home team's final at-bat and carries it to a one-run victory is called an 'ultimate grand slam.'
Date	Hitter	Team	Pitcher	Opp.	Score
5/17/02	Jason Giambi	NYY	Mike Trombley	MIN	13-12
7/28/01	Brian Giles*	PIT	Billy Wagner	HOU	9-8
5/17/96	Chris Hoiles*	BAL	Norm Charlton	SEA	14-13
6/21/88	Alan Trammell*	DET	Cecilio Guante	NYY	7-6
8/29/86	Dick Schofield*	CAL	Willie Hernandez	DET	13-12
4/13/85	Phil Bradley*	SEA	Ron Davis	MIN	8-7
8/31/84	Buddy Bell*	TEX	Pete Ladd	MIL	7-6
4/13/83	Bo Diaz*	PHI	Neil Allen	NYM	10-9
5/1/79	Roger Freed*	STL	Joe Sambito	HOU	7-6
4/22/73	Ron Lolich*	CLE	Sonny Siebert	BOS	8-7#
8/11/70	Carl Taylor*	STL	Ron Herbel	SD	11-10
8/2/70	Tony Taylor	PHI	Mike Davison	SF	7-6
8/31/63	Ellis Burton*	CHN	Hal Woodeshick	HOU	6-5
7/25/56	Roberto Clemente	PIT	Jim Brosnan	CHN	9-8
5/11/56	Danny Kravitz	PIT	Jack Meyer	PHI	6-5
9/11/55	Del Crandall*	MIL	Herm Wehmeier	PHI	5-4
7/15/52	Eddie Joost	PHI-AL	Satchel Paige	STL	7-6
6/16/52	Bobby Thomson	NYG	Willard Schmidt	STL	8-7
7/8/50	Jack Phillips	PIT	Harry Brecheen	STL	7-6
5/23/36	Sam Byrd	CIN	Cy Blanton	PIT	4-3
9/24/25	Babe Ruth	NYY	Sarge Connally	CHA	6-5#
9/9/1881	Roger Connor*	TRO	Lee Richmond	WOR	8-7
*Home run came with two outs #Extra innings