Started hitting golf balls at 18 months.

Is right-handed in everything except golf. As his father demonstrated right-handed, he followed along left-handed.

An avid pilot, following in the footsteps of his father, Phil Sr., who was a Navy pilot.

With wife, Amy, created the Birdies for the Brave program, raising money and awareness for non-profit military homefront groups. Program, which celebrated 10 years in 2016, was later adopted by the PGA TOUR.

Founded in 2004, the Phil and Amy Mickelson Foundation is a nonprofit focused on supporting a variety of youth and family initiatives. The mission of the Foundation fund is to operate exclusively for charitable, educational and/or scientific purposes.

Entered course design with Phil Mickelson Design with his first course, Whisper Rock near Scottsdale, Arizona, which opened in 2001.

Is the former chair of the American Junior Golf Association.

Last amateur to win a TOUR event with victory at 1991 Northern Telecom Open, by one stroke over Tom Purtzer. Was the first amateur since Scott Verplank in 1985 at the Western Open to win PGA TOUR event.

In 1990, became only left-handed player to win U.S. Amateur.

One of only four golfers to win NCAA Championship and U.S. Amateur in same year. The others are Jack Nicklaus, Tiger Woods and Ryan Moore.

Along with Gary Hallberg, David Duval and Bryce Molder, only four-time, first-team golf All-Americans.