Giants gain a game on Arizona

SAN DIEGO — Brett Pill hit a two-run homer in his first big league at-bat, Eric Surkamp earned his first Major League win and the San Francisco Giants had to escape a bases-loaded jam in the ninth inning to beat the San Diego Padres 6-4 on Tuesday night.

The defending World Series champion Giants pulled within six games of National League West-leading Arizona with 20 to go. The Diamondbacks lost 8-3 at Colorado.

With the Giants leading 6-3, Javier Lopez walked Orlando Hudson on four pitches to open the Padres’ ninth.

Santiago Casilla came on and got two outs before allowing rookie Anthony Rizzo’s RBI double off the right-field wall. Casilla hit Cameron Maybin on the right elbow and hit Jason Bartlett on the left hand to load the bases. Manager Bruce Bochy turned to Ramon Ramirez, the sixth Giants’ reliever, who struck out Jesus Guzman for his fourth save in five chances.

Surkamp (1-0) allowed three runs and five hits in five innings, struck out two and walked one.

Carlos Beltran had three hits and three RBI for the Giants, who won with three prospects in their starting lineup. Pill’s contract was purchased last Wednesday from Triple-A Fresno. Surkamp, called up from Double-A Richmond on Aug. 27, made his second big-league start. Justin Christian started in center field and batted leadoff after his contract was purchased from Fresno on Tuesday. Christian appeared in 24 games with the New York Yankees in 2008.

With Mark DeRosa aboard on a leadoff single in the second, Pill hit an 0-1 pitch from lefty Wade LeBlanc (2-5) that caromed off the balcony of the third level of the Western Metal Supply Co. brick warehouse in the left-field corner at Petco Park and back onto the field. Padres left fielder Kyle Blanks tossed it into the stands, where a man grabbed it. Padres event operations supervisor Rob Arnold negotiated with the fan to get the ball for Pill.

Pill, who led the Pacific Coast League with 167 hits, started at first base.

Beltran, back after missing Monday’s game with food poisoning, hit an RBI single in the third, an RBI double in the fifth and brought in a run with a grounder in the ninth.

San Diego’s Nick Hundley hit a solo homer off Surkamp leading off the second. Rookie Andy Parrino got his first big league RBI on a sacrifice fly later that inning, and Kyle Blanks hit a sacrifice fly in the third.