The Golf Grand Slam is an esteemed achievement in men's professional golf, referring to winning all four major championships. These four majors are:
- The Masters Tournament
- The PGA Championship
- The U.S. Open
- The Open Championship (British Open)
There are two types of Grand Slams:
- Career Grand Slam : Winning each of the four majors at least once over the course of a golfer’s career. This is a significant accomplishment, achieved by only six male golfers in the modern era: Gene Sarazen, Ben Hogan, Gary Player, Jack Nicklaus, Tiger Woods, and Rory McIlroy.
- Calendar-Year Grand Slam : Winning all four majors in the same calendar year. This is extremely rare and has never been achieved in the modern professional era. The only golfer to achieve a version of this was Bobby Jones in 1930, though the majors at that time included amateur events, not the same four majors recognized today.
Tiger Woods achieved a unique feat called the "Tiger Slam" by winning four consecutive majors spanning two calendar years but not all in a single year. In summary, the Golf Grand Slam represents either winning all four majors in one year (calendar-year Grand Slam) or winning each at least once during a career (career Grand Slam) — with the latter being the more common and currently attainable feat.
