Volquez cut the run off at the plate, and catcher Russell Martin tagged out Ian Kinsler, who was caught between third base and home. Volquez got J.D. Martinez to fly out and end the inning by allowing just one run, and the Pirates went on to win, 4-2.
Volquez said he had "no idea" how he made the play.
"I found out I had the ball when it hit my glove -- half and half [leather and palm]," Volquez said. "I turned around, supposed to throw to second base, I was so surprised the ball came at me that I threw to home plate. I got lucky. When I pitch the ball, I go toward the first-base side, and when I turned around, I was looking straight at home plate, so I decided to throw the ball there."
Added manager Clint Hurdle: "It's going to make a highlight film. ... He found a way to keep things interesting out there to say the least. We had pitchers' infield practice earlier this homestand, and we didn't see a lot of that going on."
Volquez was checked by the training staff, who looked at his left palm, but he remained in the game. Between innings, Volquez -- who secured his 10th victory by allowing two runs over the course of six innings -- had some laughs with teammates as they reenacted the play.
Stephen Pianovich is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.