A career Grand Slam in tennis means a player has won all four major tournaments — the Australian Open, French Open, Wimbledon, and US Open — at least once over the course of their career, in any order and across different years. It does not have to happen in a single season; that stricter feat (all four in the same calendar year) is called a calendar Grand Slam.

What is a career Grand Slam in tennis?

In simple terms, a career Grand Slam is a “collected them all, eventually” achievement. A player just needs at least one title at each of the four majors at some point during their playing years, regardless of sequence or time gap.

  • Tournaments required: Australian Open, French Open (Roland Garros), Wimbledon, US Open.
  • Can be spread over many seasons; there’s no time limit as long as it’s within the player’s career.
  • Can be achieved in singles, doubles, or mixed doubles (it’s always “within one discipline”).

An example: if a player wins Wimbledon early in their career, then later adds the US Open and Australian Open, and finally wins the French Open several years after that, they complete a career Grand Slam at the moment they win that missing major.

How it differs from a calendar Grand Slam

Both involve the same four tournaments, but the timing makes all the difference.

  • Calendar Grand Slam : Win all four majors in the same calendar year in one discipline.
  • Career Grand Slam : Win all four majors at least once over your whole career , in any years and order.

Think of it like this: a calendar Grand Slam is a perfect season; a career Grand Slam is a complete trophy collection.

Why it matters so much

Winning even one major is a big deal; winning all four shows a player has mastered every surface and condition the sport demands.

  • The French Open tests clay-court endurance and topspin-heavy rallies.
  • Wimbledon demands precision and adaptability on fast grass.
  • Australian Open and US Open emphasize hard-court power, movement, and resilience over long matches.

Because each major plays differently, a career Grand Slam is seen as a marker of all-around greatness and versatility.

Related “Grand Slam” terms you might hear

Commentators often bundle a few similar phrases together:

  • Grand Slam (calendar) : All four majors in one year.
  • Non-calendar-year Grand Slam : Four majors in a row, but straddling two seasons (e.g., last three of one year plus the first of the next).
  • Career Grand Slam : All four majors at least once during a career.
  • Career Golden Slam : All four majors plus Olympic gold at some point in a career.
  • Career Super Slam : All four majors, Olympic gold, and the year-end championship during a career.

These variations help fans and historians describe how and when a player collected tennis’ biggest prizes. TL;DR: A career Grand Slam in tennis is when a player wins the Australian Open, French Open, Wimbledon, and US Open at least once across their career , in any order and any years, within the same discipline.