San Francisco won its 10th straight game when facing postseason elimination.
PHOTOS: San Francisco Giants fan photos 2016
Panik came through against Mike Montgomery, who was pitching his fifth inning of relief.
RELATED: USS San Francisco shows off Giants pride ahead of NLDS Game 3
The tough-to-eliminate Giants forced Tuesday night's Game 4 back at their raucous, sold-out ballpark, postponing a potential Cubs clinch party. Chicago leads the best-of-five playoff 2-1 and will send John Lackey to the mound opposite lefty Matt Moore.
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