Marco Andretti will not run the full IndyCar schedule this season as the third-generation driver reprioritizes his racing career.
Andretti will compete in the Indianapolis 500, the historic race his family has won just once, and assist Andretti Autosport with preseason testing and development. He will be in a car next week testing in Sebring, Florida.
Beyond that, his schedule is open.
"Marco and I have discussed this at length. I support and respect his decision to take a focus on other areas of life, and maybe even other forms of motorsport," team owner Michael Andretti said Friday of his son.
Marco Andretti, 33, followed his grandfather, father and cousins into IndyCar racing but has never found the same success as others in his famed family. Mario Andretti, his grandfather, ranks second on IndyCar's all-time win list with 52 victories, including the 1969 Indy 500. Michael Andretti won 42 races.
Marco has two career victories in 15 seasons, his last in 2011. He won the pole in August for the Indianapolis 500 but didn't lead a lap and finished 13th.
He was 20th in the final season standings, lowest of all full-time IndyCar drivers.
"I think for any multigenerational athlete, it can be really challenging to find your own ground and make your own name on top of your family's," Michael Andretti said. "Marco has always had the courage to chart his own path, and I'm proud of the career he's built for himself and the person he's become. I know this decision wasn't easy."
Both father and son stressed that Andretti is not retiring.
Marco said he hoped to compete in sports car racing alongside his cousin Jarett and in marquee events such as the Rolex 24 at Daytona, 12 Hours of Sebring and Le Mans.
"I definitely am going to keep driving," he said. "I still have a deep passion for it and have unfinished business to take care of and some boxes that I want to check before I consider retiring as a driver.
"I remain very hungry to win the Indy 500. It is our biggest stage and the place that I feel I bring the most to the table as a driver."
As a rookie in 2006, Andretti was passed while leading on the final straight by winner Sam Hornish Jr. in his Indy 500 debut. He finished second, his best finish in 15 races. He was third in 2010 and 2014.