The Biggest San Francisco Giants Blown Leads Of All Time

What is the biggest San Francisco Giants blown lead of all time?

The largest blown lead in San Francisco Giants history is 11 runs. The Giants (then New York Giants) were leading 11-0 in the top of the 5th inning against the St. Louis Cardinals on Jun 15, 1952, and ended up losing the game 12-14.

Biggest San Francisco Giants Collapses

	Date	Opponent	Largest Lead		Final Score
1	Sun, Jun 15, 1952	vs St. Louis Cardinals	11	11-0, Top 5th	12-14
2	Fri, May 16, 1997	@ Montreal Expos	9	11-2, Bot 4th	13-14
3	Mon, Apr 26, 1993	@ Philadelphia Phillies	8	8-0, Bot 6th	8-9
	Sat, May 23, 1970	vs San Diego Padres	8	8-0, Top 3rd	16-17
5	Sun, Jun 22, 2008	@ Kansas City Royals	7	10-3, Bot 5th	10-11
	Wed, Jun 28, 2000	@ Colorado Rockies	7	8-1, Bot 3rd	13-17
	Thu, Jun 22, 2000	@ St. Louis Cardinals	7	8-1, Bot 5th	10-11
	Sun, Sep 27, 1998	@ Colorado Rockies	7	7-0, Bot 5th	8-9
	Sat, May 31, 1958	@ St. Louis Cardinals	7	8-1, Bot 5th	9-10
	Thu, Aug 30, 1951	vs Pittsburgh Pirates	7	8-1, Top 6th	9-10
	Wed, Jun 22, 1949	@ St. Louis Cardinals	7	8-1, Bot 4th	8-11
	Tue, Jun 25, 1929	vs Brooklyn Robins	7	10-3, Top 7th	10-12
	Wed, Jun 9, 1915	@ St. Louis Cardinals	7	9-2, Bot 5th	10-11
14	Fri, Aug 14, 2020	vs Oakland Athletics	6	6-0, Top 7th	7-8
	Fri, Aug 24, 2018	vs Texas Rangers	6	6-0, Top 5th	6-7
	Sun, Aug 14, 2016	vs Baltimore Orioles	6	7-1, Top 7th	7-8
	Mon, Aug 3, 2015	@ Atlanta Braves	6	6-0, Bot 6th	8-9
	Tue, Sep 10, 2013	vs Colorado Rockies	6	6-0, Top 5th	8-9
	Sun, Apr 8, 2012	@ Arizona Diamondbacks	6	6-0, Bot 4th	6-7
	Thu, May 15, 2008	vs Houston Astros	6	6-0, Top 4th	7-8
	Fri, Sep 8, 2000	vs San Diego Padres	6	7-1, Top 7th	7-10
	Tue, Sep 15, 1998	@ Arizona Diamondbacks	6	6-0, Bot 4th	6-7
	Tue, Apr 29, 1997	@ St. Louis Cardinals	6	7-1, Bot 7th	7-9
	Sat, Jun 29, 1996	vs San Diego Padres	6	6-0, Top 5th	6-7
	Sun, Oct 1, 1995	@ Colorado Rockies	6	8-2, Bot 3rd	9-10
	Mon, Jul 17, 1995	vs Florida Marlins	6	6-0, Top 6th	8-10
	Wed, Aug 4, 1993	@ San Diego Padres	6	7-1, Bot 6th	10-11
	Tue, Apr 30, 1991	@ Philadelphia Phillies	6	9-3, Bot 5th	9-11
	Mon, Jun 8, 1987	@ Cincinnati Reds	6	6-0, Bot 4th	6-7
	Sat, Jun 14, 1980	@ New York Mets	6	6-0, Bot 6th	6-7
	Thu, Jul 21, 1977	vs Philadelphia Phillies	6	6-0, Top 6th	6-9
	Tue, May 18, 1976	vs San Diego Padres	6	6-0, Top 7th	6-7
	Mon, Apr 26, 1976	vs St. Louis Cardinals	6	7-1, Top 2nd	7-15
	Sun, Sep 7, 1969	@ Houston Astros	6	6-0, Bot 4th	6-7
	Fri, Apr 23, 1965	vs New York Mets	6	8-2, Top 8th	8-9
	Fri, Aug 2, 1963	@ Chicago Cubs	6	11-5, Bot 8th	11-12
	Thu, Jul 31, 1958	@ Cincinnati Redlegs	6	6-0, Bot 4th	9-10
	Wed, Jun 4, 1958	vs Milwaukee Braves	6	7-1, Top 5th	9-10
	Fri, Jul 8, 1955	vs Brooklyn Dodgers	6	6-0, Top 4th	8-12
	Thu, Aug 21, 1952	@ Chicago Cubs	6	6-0, Bot 4th	6-8
	Wed, Jun 9, 1948	@ Chicago Cubs	6	6-0, Bot 5th	7-8
	Mon, Sep 4, 1944	@ Philadelphia Phillies	6	8-2, Bot 5th	8-14
	Fri, Aug 11, 1944	@ Pittsburgh Pirates	6	6-0, Bot 4th	8-12
	Mon, Sep 27, 1943	@ Chicago Cubs	6	8-2, Bot 3rd	9-10
	Thu, Jun 13, 1929	@ Pittsburgh Pirates	6	6-0, Bot 2nd	7-11
	Sun, Jun 5, 1927	@ Cincinnati Reds	6	6-0, Bot 4th	9-10
	Mon, Aug 18, 1924	@ Cincinnati Reds	6	6-0, Bot 7th	7-8
	Tue, May 30, 1922	@ Philadelphia Phillies	6	8-2, Bot 8th	8-9
	Sat, Aug 30, 1913	@ Philadelphia Phillies	6	6-0, Bot 6th	6-8
	Wed, Sep 16, 1903	@ Cincinnati Reds	6	6-0, Bot 8th	6-7

What is the biggest 9th inning collapse in San Francisco Giants history?

The largest lead the San Francisco Giants have blown in the 9th inning is 5 runs, which they've done twice. The most recent 5 run blown lead in the 9th inning was on Aug 14, 2020, when the Giants were ahead 7-2 in the top of the 9th inning against the Oakland Athletics, and blew the lead and lost the game 7-8.

Due to limitations in the historical record, this leaderboard only includes Giants games going back to 1901, even though our full database of game results goes further back than that. The majority of data used to generate these leaderboards are box scores which were sourced free of charge from, and are copyrighted by, Retrosheets. They are an amazing resource for anybody interested in Baseball history.

Biggest All Time San Francisco Giants Blown Leads

What is the biggest San Francisco Giants blown lead of all time?

Biggest San Francisco Giants Collapses

What is the biggest 9th inning collapse in San Francisco Giants history?