Padres 13, Cubs 7: Yonder Alonso, Carlos Quentin and Nick Hundley each had a home run among his three hits as visiting San Diego racked up a season-high run total while evening the series at a game apiece.
Jedd Gyorko added a double and two RBIs for the Padres, who have won five of six. Alonso hit a two-run blast during a five-run outburst in the fifth inning, Quentin added a solo shot in the sixth and Hundley delivered a three-run shot onto Waveland Avenue in the eighth.
The ample run support benefited starter Edinson Volquez (2-3), who picked up his second straight win despite allowing four runs on seven hits over 5 2/3 innings. Volquez left after walking the bases loaded in the sixth, but Dale Thayer induced a flyout from Julio Borbon to end the threat and preserve a 9-4 lead.
Luis Valbuena and Starlin Castro registered two-run shots during a four-run fifth inning for the Cubs, who lost for just the second time in six games. David DeJesus added his fourth homer to lead off the seventh, former Padre Cody Ransom hit a solo shot in the ninth and Anthony Rizzo had three doubles and an RBI.
Cubs starter Edwin Jackson (0-4) remained winless with his new team as he was roughed up for eight runs on 11 hits in 4 2/3 innings.
GAME NOTEBOOK: The Padres' 13 runs are the most they have scored in 225 games at Wrigley Field. … The six-run margin marked the largest in any game this season for the Cubs. Each of their first 25 contests was decided by four runs or fewer. … The last time the Padres gave up four home runs and won was July 29, 2007 against Houston.