Jon Lester held the Twins to one earned run over 6 1/3 innings Saturday in a no-decision.
Jon Lester went seven strong innings in Sunday's no-decision against the Reds, surrendering just one run on five hits.
Jon Lester couldn't escape the fifth inning, yielding five runs in 4 1/3 innings and taking the loss on Tuesday as the Cubs fell 6-0 to the Tigers.
Jon Lester struggled and took a loss on Wednesday against the Marlins, yielding six runs in five innings.
Jon Lester fanned 10 Nationals on Wednesday, but he still lost after giving up two runs -- one earned -- in seven innings.
Jon Lester held the Pirates to one run over seven innings Saturday in the Cubs' 4-1 victory.
Jon Lester earned his third win of the season on Monday, holding the Mets to three runs in six innings.
Jon Lester picked up his second win of the season on Wednesday, allowing four runs (one earned) in seven innings against the Cardinals.
Jon Lester registered his first victory as a Cub on Friday, spinning seven shutout innings in a 1-0 win over the Brewers.
Jon Lester racked up 10 strikeouts over six innings in a no-decision against the Reds on Friday.
Jon Lester surrendered three runs on six hits in his 5 1/3 innings of work against the Padres on Sunday.
Jon Lester continued to struggle, allowing six runs in six innings in a no-decision Monday, but the Cubs were still able to win against the Reds.
Jon Lester struggled in his Cubs debut on Sunday night, allowing three runs on eight hits over 4 1/3 innings in a losing effort against the Cardinals.
Jon Lester (arm) threw 54 pitches Thursday in a minor league game.