system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
What is a career grand slam in professional golf?


assistant
A career grand slam is achieved when a professional golfer is able to win all of golf's major championships. These four tournaments are the Masters Tournament, the PGA Championship, the U.S. Open, and The Open Championship. No golfer in the modern era has ever completed a grand slam in the same calendar year.