Kenseth made it 2 for 2 in the Chase, holding off Joe Gibbs Racing teammate Kyle Busch to win Sunday at New Hampshire Motor Speedway.
He followed his win in the Chase for the Sprint Cup championship opener at Chicagoland with his series-high seventh victory of the season. Kenseth made his 500th career start and built a 14-point lead over Busch before the series shifts to Dover.
One win or seven, Kenseth will take a title any way he can.
"If you're fortunate enough to win a championship, or another championship, I don't think there's a bad way to win it," he said. "I know it still gets brought up because it was the last year without the Chase and we won one race. But I was real proud of what we did that year. It was tough to accomplish."
Kenseth was paired with owner Jack Roush for more than a decade and won 22 races, a pair of Daytona 500s and the 2003 championship. He's having a career year in his first season at JGR, obliterating his previous season best for wins five in 2002.
Kenseth and Busch made it a 1-2 finish for Joe Gibbs Racing and helped the organization win for the fifth time in the last seven races dating to Busch's win at Watkins Glen in August. Kenseth won at Bristol, Busch took Atlanta and Kenseth won the last two.
Kenseth joins Greg Biffle (2008) and Tony Stewart (2011) as the only drivers to win the first two Chase races. Stewart went on to win the title.
Kenseth moves on in the No. 20 Toyota to Dover, where he's a two-time winner.
"For me to win at Loudon, it's more than a stretch, more than a dream," Kenseth said. "This is probably one of my worst places. This just shows you how good this team is."
Chase drivers filled six of the top 10 spots. Biffle was third and Johnson fourth. Dale Earnhardt Jr. was sixth and Carl Edwards ninth. Jamie McMurray was the highest non-Chase finisher in fifth place.