Don Budge was the first player to win the Grand Slam in 1938, which means winning all four major tennis tournaments in the same calendar year.

Margaret Court holds the record for the most Grand Slam singles titles in the Open Era, with 24 titles.

Novak Djokovic is the only player to have won all four Grand Slam singles titles in three different decades (2000s, 2010s, and 2020s).

Roger Federer holds the record for the most Wimbledon singles titles, with 8 titles.

Rafael Nadal was the first player to win the French Open four consecutive times, from 2005 to 2008.

Jimmy Connors holds the record for the most US Open singles titles, with 5 titles.

Novak Djokovic was the first player to win the Australian Open four consecutive times, from 2011 to 2014.

The United States holds the record for the most Davis Cup titles, with 32 titles.

The United States was the first team to win the Fed Cup four consecutive times, from 1976 to 1979.

Venus Williams holds the record for the most Olympic gold medals in tennis, with 4 gold medals.

The United States was the first team to win the Hopman Cup four consecutive times, from 1990 to 1993.

Roger Federer holds the record for the most ATP Finals titles, with 6 titles.

Martina Navratilova was the first player to win the WTA Finals four consecutive times, from 1981 to 1984.

Martina Navratilova holds the record for the most mixed doubles Grand Slam titles, with 10 titles.

Margaret Court was the first player to win the Wimbledon mixed doubles title four consecutive times, from 1963 to 1966.