The Giants expected the fifth to unfold much differently. After Buster Posey's double off the wall accounted for their scoring, they summoned left-hander Matt Reynolds, who had thrown 3 1/3 shutout innings in his previous three appearances. Though Reynolds was to face the top of San Diego's batting order, four of the Padres' first five hitters were left-handed, which promised to work in his favor.
But the Padres, not Reynolds, established control quickly. Jon Jay bunted for a leadoff single.
"I don't know if he recognized it," Giants manager Bruce Bochy said. "It looked like he could have had a play on that if he could have bounced off the mound. That's what started everything."
Said Reynolds, "I've faced him before and he's tried to bunt on me before. I think on the count [3-1], I wasn't totally prepared for it."
Carlos Asuaje doubled, prompting the Giants to intentionally walk Wil Myers. Then Reynolds unintentionally walked Ryan Schimpf to force in a run.
"That's unlike him," Bochy said of Reynolds. "He's a strike-thrower. That's why I like him out there."
Alex Dickerson's subsequent two-run single finished Reynolds and, essentially, the Giants.
Reynolds hadn't appeared in a game since last Saturday. But he refused to use that as an excuse.
"Our job is to prepare every single day like we're going to throw," he said. "Physically, I felt good tonight. I just had a tough time landing my breaking ball and put myself in some bad counts and some good hitters' counts that I don't normally do. I'm not going to blame it on anything other than I didn't get the job done."
Chris Haft has covered the Giants since 2005, and for MLB.com since 2007. Follow him on Twitter at @sfgiantsbeat and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.