Actor Matthew McConaughey, center, walks near the 16th hole as he follows the progress of Rickie Fowler, of the United States, during the second round of the men's golf event at the 2016 Summer Olympics in Rio de Janeiro, Brazil, Friday, Aug. 12, 2016. (AP Photo/Chris Carlson)

The very last stop on Matthew McConaughey’s excellent Olympic adventure was _ drum roll _ the golf course.

The Academy Award-winning actor has turned up at venues ranging from swimming to rugby sevens, a by-now familiar fan in his trademark schoolboy cap. But he made it a point to squeeze in one more, showing up Friday at the Olympic Golf Course to show support for pal and American golfer Rickie Fowler just before a flight back to the United States.

“Golf was my sport in high school,” McConaughey said, before letting on he only takes his clubs out of storage about once a year back home.

Asked what Olympian he’d most like to portray in a movie, McConaughey briefly drew a blank. When someone suggested swimmer Michael Phelps, the most decorated Olympian of all time, he nearly burst out laughing.

“I’d have to grow about six inches,” McConaughey said.

This is his fifth visit to Rio, so he’s squeezed in more sporting contests than sightseeing stops. McConaughey said his favorite moments have come at the pool, watching his the U.S. team dominate.

“It’s been an all-star show there,” he said. “I got to watch Phelps win three times."

Matthew McConaughey watches the swimming competitions at the 2016 Summer Olympics, Thursday, Aug. 11, 2016, in Rio de Janeiro, Brazil. (AP Photo/Matt Slocum)

But keeping in mind the worldwide audience that has flocked to films such as “Dallas Buyers Club” and “Dazed and Confused,” the 46-year-old actor sought to bolster his international bona fides.

He called women’s beach volleyball “the biggest home-cooking crowd. You know you’re in Brazil.”

“It’s been pretty cool to hear how loud a place gets if somebody upsets an American,” he said, before peeling off to sign autographs for a growing crowd.

McConaughey's wife, Camila Alves, is a Brazil native and accompanied him on the trip to Rio.