Giambi, Rockies walk off winners for first time in '11 – Boulder

Giambi hits two-run walk-off single

Giambi drills a walk-off homer to center

Giambi launches a two-run, walk-off blast

May 17th, in 2002, Jason Giambi hit a walk-off grand slam in the 14th inning. Bet you haven't heard that name in a while! #WalkOffWednesdays, By Baseline Sports

Giambi's walkoff homer gives Rockies 10th straight victory – The Denver Post

Giambi Homers as Rockies Beat Yankees - The New York Times

Giambi wins it with a walk-off homer

World Series Journal: Jason Giambi in mix for Rockies manager gets attention at World Series – The Denver Post

9/24/13: Giambi's walk-off blast powers dramatic win

Giambi belts mammoth walk-off homer in ninth

Jason Giambi's walk-off home run in 10th

9/24/13: Giambi's walk-off blast powers dramatic win

Giambi Homers as Rockies Beat Yankees - The New York Times

Rockies 7, Marlins 4: Jason Giambi Hits Colorado's First Walk-Off Home Run of 2011 - Purple Row