Who is ‘Pistol Pete’? All we know about Rickie Fowler’s superfan's costume in Japan

Rickie Fowler's superfan donned the popular mascot of Oklahoma State University, Pistol Pete, to cheer for the American golfer in Japan. Fowler is playing in this week's Zozo Championship, which began with its first round on Thursday, October 24. To support his favorite golfer around the time of Halloween, an avid fan dressed up in the iconic mascot costume.

Pistol Pete is the athletic mascot of Rickie Fowler's college, Oklahoma State University. The golfer studied at the university and played amateur golf before starting his professional career in 2009.

The fan wore a cowboy-themed costume with an orange hat and scarf, and a half-sleeve black jacket over a white shirt, resembling Pistol Pete. The fan also sported Pete's long mustache.

Pistol Pete was officially adopted as the mascot of Oklahoma State University in 1984. The look resembles a traditional cowboy, inspired by Frank Eaton, a popular scout and sheriff.

In 1923, a group from Oklahoma A&M College, now known as Oklahoma State University, saw Eaton riding a horse at an Armistice Day parade and were impressed by his unique appearance. They decided to create Pistol Pete as the official mascot of their college inspired by Eaton, replacing the previous one, a tiger in orange and black colors known as 'Princeton of the Prairie'.

In 1958, Pistol Pete was adopted as the mascot, and in 1984, it was officially sanctioned and became the licensed symbol of the university.

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Rickie Fowler's iconic Sunday golf look inspired by Oklahoma State University colors

Rickie Fowler is widely known for flaunting the colors of his university during the Sunday finals of his matches. He is popular for wearing orange on the greens.

Fowler once opened up about wearing orange on the greens and said, via Golf Monthly:

"I started doing that while I was in school. Obviously not many guys wear orange, so it was a way to be my own man out where,” the American once remarked about his color choice. "A few of my Oklahoma State teammates wore the same colors, so at the time it was a bit of a bonding thing. But nobody really does it on Tour. I like to think of it as my own personal style.”

The fan at the Zozo Championship also donned similar orange and black colors to cheer for the American golfer.

Rickie Fowler had a good start at this week's Zozo Championship. He began his game with an impressive round of 68 and maintained the momentum on the second day.

Fowler started on Thursday from the first tee hole, shooting a birdie and two bogeys on the front nine, and finished with three birdies on the back nine for a round of 2-under 68.

Fowler aced the second round with a score of 6-under 64, tying for seventh place and jumping 15 positions on the leaderboard. He shot three birdies and one bogey on the front nine and four birdies on the back nine in his second round. Nico Echavarria took the lead after the second round at 12-under, followed by Justin Thomas and Taylor Moore tied for second.