Phoenix, AZ -- (Sports Network) - Brandon Webb pitched seven solid frames to pick up his big-league best 19th victory, as Arizona closed out a three-game sweep of San Diego, 4-1.

Webb (19-4) scattered three hits and nary a run with three walks and eight strikeouts in winning his sixth straight start. The sinker-baller is unbeaten over his last 11 starts (8-0). The 19th win is a new career high, as Webb won 18 games a season ago.

"I'm feeling pretty good," said Webb. "I have a lot of confidence, especially with the guys hitting and playing defense behind me like they are. I have being getting a lot of ground balls and strikeouts when I need them."

Conor Jackson completed a hot series with two RBI for the Diamondbacks, who have won six of seven overall. Jackson knocked in six runs over the three-game sweep.

Arizona's victory kept it two games ahead of the surging Los Angeles Dodgers in the National League West division race.

Chad Reineke (1-1) was hit with the loss after giving up three runs on five hits with three walks and four strikeouts over six frames. Edgar Gonzalez's pinch-hit single off Diamondbacks closer Brandon Lyon scored San Diego's lone run in its fourth straight defeat.

"He's (Webb) probably had a lot of outings like that I assume," said Padres manager Bud Black. "The sinker has great action, the change-up was really good tonight, it just has such action down below the hitting area."

Mark Reynolds' double moved Adam Dunn to third base in the second frame, and Tony Clark's sacrifice fly drove the newest Diamondback in for a 1-0 edge. Jackson's two-run double in the fifth created breathing room, and Chris Snyder's single scored the aforementioned Jackson with Arizona's fourth tally in the eighth.

Game Notes

Arizona has won eight of 10 overall...The Diamondbacks have won 10 of 15 contests with the Padres this season...Attendance 25,611...Time of game was 2:32.