Can Colin Kaepernick keep roll going vs. Legion of Boom?

Colin Kaepernick seems to have gotten his groove back as quarterback of the San Francisco 49ers, throwing for a combined 602 yards and four touchdowns without an interception while completing 62.9 percent of his passes the past two games.

Then again, his success came against the suspect secondaries of the New York Giants and Baltimore Ravens.

They currently rank 30th and 27th against the pass, respectively.

His next opponent? The Seattle Seahawks, and while their Legion of Boom has been more Legion of Gloom this season by blowing fourth-quarter leads in all four of their losses, they have owned Kaepernick in his career.

In six career starts against Seattle, including the playoffs, Kaepernick is 1-5 with nine interceptions, four by Richard Sherman, and three touchdown passes while completing just 53.3 percent of his passes and averaging 160.2 passing yards per game.

The 49ers have averaged a mere 10.3 points against the Seahawks with Kaepernick starting and scored a combined 10 points in a pair of losses last season.

“They have a few new wrinkles, but overall they’re the same defense,” Kaepernick said this week. “A single-high defense that plays hard. They play fast. They know what they’re doing. Very physical.

“They just play their defense. They’re a very good defense. They have been for quite a few years now.”

Especially against Kaepernick, whose career Total QBR in five regular season starts against the Seahawks is just 18.3. That’s lower than the career QBRs of JaMarcus Russell (18.7) and Kaepernick’s backup, Blaine Gabbert (22.6).

Still, Kaepernick has added a new wrinkle to his game of late by taking more snaps under center, rather than in the shotgun. It gives him a bit more time to look at the defense, rather than watching for the snap to arrive through the air.

Pro Football Focus had Kaepernick under center on just 12.1 percent of his snaps combined in Weeks 1 through 4, but there on 60.3 percent against the Giants and 80 percent last week against the Ravens.

And since bottoming out with a combined five interceptions and no TD passes in losses to the Arizona Cardinals and Green Bay Packers, Kaepernick has the highest QBR in the league of any quarterback with two starts in the past two weeks at 85.6.

“I feel like they have a new team, a new philosophy,” Seahawks defensive end Michael Bennett said on a conference call with Bay Area reporters. “They’re playing different, faster.

“Hopefully, we keep the same thing that we’ve been doing to [Kaepernick] and make some more big plays in big moments.”

Of course, the Seahawks' defense has uncharacteristically folded of late, blowing fourth-quarter leads of 24-7 to the Cincinnati Bengals and 23-14 to the Carolina Panthers. Overall, quarterbacks have completed a mind-boggling 48 of 56 passing attempts (not including spikes) in the fourth quarter against the Seahawks this season.

Still, the Seahawks’ four losses have come against opponents with a combined record of 19-3.

“There’s holes in every defense,” Kaepernick said. “There’s opportunities against every defense. We have to be able to find those and be able to exploit those.

“I do have to go out, I have to perform better.”