Four years after winning the National League Rookie of the Year award and three since blowing out his knee in a shaving cream pie celebration, Chris Coghlan is starting to perk up at the plate.

“I had to work my way back, there’s no doubt,” said Coghlan, who is enjoying his first .300-or- better month at the plate since June 2010, right before he wrecked his knee in a postgame celebration.

While Coghlan is hitting just .241 overall and has driven in only one run, he’s hitting .324 (12 for 37) this month — .290 (20 for 69) since April 15 following a 1-for-19 drought to start the season.

“This year my biomechanics are a lot better,” said Coghlan, who spent six weeks during the offseason working on his stroke at Mike Bard’s Bardo’s Baseball Academy in Denver. “Now my swing’s solid again.”

Coghlan is enjoying a great deal of his success early in the count, going 11 for 29 (.379) when he swings at the first or second pitch of his at-bats. But he said he’s not making a conscious effort to be more aggressive early in the count.

“If it’s not the pitch I’m looking for, I try to lay off it,” he said. “If it’s the pitch I’m looking for, then I want to smash it, whether it’s the first one or the fifth one.”

Coghlan’s improvement has led to an increase in playing time. He has started the past eight games.

“I’m definitely grateful for the opportunity to play back-to-back games,” Coghlan said. “I haven’t done that for a long time. I would like to think that they were able to see that this guy can swing a little bit.”