Posey walks in winner in 13th, Giants beat Blue Jays 5-4

Toronto Blue Jays' Michael Saunders, right, circles the bases after hitting a home run off San Francisco Giants relief pitcher Santiago Casilla, left, in the ninth inning of their baseball game Wednesday, May 11, 2016, in San Francisco. (AP Photo/Eric Risberg)
Eric Risberg/AP

SAN FRANCISCO (AP) Buster Posey walked with the bases loaded in the 13th inning and the San Francisco Giants salvaged one win in a three-game series with the Toronto Blue Jays, 5-4 on Wednesday.

Brandon Belt was hit by a pitch to open the inning and Denard Span's bunt attempt was mishandled at second. Following a wild pitch, Joe Panik was walked intentionally.

Matt Duffy lined out to first base before Posey saw four straight balls from Ryan Tepera (0-1).

Albert Suarez (1-0) pitched an inning for his first major-league victory.

Madison Bumgarner pitched 6 2/3 solid innings, allowing one run on three hits. He owns a 1.87 ERA over his last five starts.