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5/24/2014 8:17 P.M. ET

Pitching has been a strength for Cubs

SAN DIEGO -- Friday night's season-worst outing by Edwin Jackson was an anomaly to what has been a Cubs strength this season.

"We've been getting really good pitching," said Cubs manager Rick Renteria.

Going into Friday night's game, the Cubs staff had a 1.40 earned run average over the previous six games. Starting pitchers have produced 25 quality starts this season with a 1.89 ERA in those games. The Cubs, however, are only 10-15 when the starting pitchers allow three or fewer runs in six innings.

The Cubs bullpen has a 1.93 over the past 10 games with 35 strikeouts against 13 walks in 37 1/3 innings.

Overall, the Cubs entered Saturday night's game in San Diego, ranked ninth in the National League with a 3.60 ERA. Cubs starters ranked eighth with a 3.71 ERA while the bullpen ranked seventh with a 3.46 ERA.

Lake has earned more playing time

SAN DIEGO -- Although corner outfielder Justin Ruggiano could soon be coming off the disabled list, his return might not affect the playing time of Junior Lake.

Cubs manager Rick Renteria said Saturday that Lake deserves more playing time given the way the 24-year-old from the Dominican Republic has played.

Lake entered Saturday's game riding a nine-game hitting streak that matches the longest of his career.

Lake is hitting .375 (15-for-40) during the streak and .367 (18-for-49) in 14 games since May 8. He has hit safely in 24 of his 30 starts.

Worth noting

• Cubs left-handed reliever Wesley Wright has held right-handed hitters to a .154 batting average (6-for-39). That is the lowest lefty-vs.-righty batting average in the National League.

Bill Center is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.