He began playing at the age of six with his brother Andrés Moya (Nin).

In 1996 he entered the top 20 of the ATP for the first time. He finished 1997 as the best Spanish and in the top 10 for the first time in his life. In addition, he became the first Spaniard to reach the Australian Open final since Andrés Gimeno in 1969. In 1998 he won his first Grand Slam title defeating Álex Corretja in the Roland Garros final. On March 15, 1999, he became the first Spaniard to be ranked number 1 in the ATP ranking since 1973, where he stayed for two weeks.

He was part of the Spanish team that won the Davis Cup in 2004, the final that was played at the Olympic Stadium of the Cartuja (Seville), in which he had a prominent role, obtaining two of the three points for Spain, winning the first point against Mardy Fish and getting the decisive victory against Andy Roddick, thus achieving the second Silver Salad Bowl in the history of Spanish tennis.

After several seasons remaining in the top 20 of the ATP ranking, in 2006 he leaves the select group of players and decides to change his coach to resume his aggressive game and finish his career as a competitive player. Luis Lobo, his new coach, thus becomes the protagonist of the comeback of Carlos Moya in the ranking to regain positions and place in the Top 20 in 2007. He also played new exhibition tournaments such as Betfair Turbo Tennis, held in Zaragoza with Nadal.

In 2005 he donated the prize won by winning the Madras tournament to the victims of the 2004 Indian Ocean earthquake.3

He is also one of the 8 entry players that appear in the Virtua Tennis and Top Spin games.

In 2009 he underwent hip surgery due to an injury. In 2010 he returned to the circuit with his new coach, but announced his retirement at the end of that year, on November 17, 2010 at age 34.4

Currently, he works with Roberto Carretero in his tennis academy located in Madrid. During the summer he also works offering Tennis Camps [1] to young people from all over the world. Its motto is “If you work on what you like you will not work a single day of your life”. This is what he does every day at his tennis academy, to help young tennis players reach the dream that he fulfilled one day, to become a tennis professional.