Fábián Marozsán

In his second round match, he defeated 32nd seed Jiří Lehečka in a third set tiebreaker.

He then upset world No. 2 Carlos Alcaraz in straight sets for the biggest win of his career and first top-5 and top-10 win, to reach the fourth round.

As a result, he moved 20 positions up to world No. 115 on 22 May 2023.

He lost to Borna Ćorić in three sets.

He reached the top 100 on 19 June 2023, after winning the Perugia Challenger title, defeating top seed Pedro Cachin in the semifinals and wildcard Edoardo Lavagno in the final without dropping a set en route.

He made his debut at the 2023 Wimbledon Championships as a lucky loser after the late withdrawal of Nick Kyrgios.

In his second Grand Slam main draw appearance, he reached the second round of the 2023 US Open.

In his first round match, he defeated Richard Gasquet in a five sets match where he was originally leading by two sets and a break 6-3 6-1 5-3.

At the 2023 Rolex Shanghai Masters he reached again the fourth round at the Masters level in the season and only twice in his career, defeating Arthur Rinderknech, 11th seed Alex de Minaur and Dušan Lajović for his fourth, fifth and sixth wins at a Masters 1000 level all in straight sets.

He became the first Hungarian since 1990 to reach a quarterfinal at the Masters 1000 level with a top-10 win over Casper Ruud.

Fábián Marozsán (born 8 October 1999) is a Hungarian professional tennis player.

Marozsán has a career high ATP singles ranking of world No. 57 achieved on 29 January 2024.

He also has a career high ATP doubles ranking of world No. 444 achieved on 16 January 2023.

He is currently the No. 1 Hungarian player.

He won his first Challenger title in August 2022 in Banja Luka and reached the top 200 at world No. 185 on 29 August 2022.

He won his second Challenger in March 2023 in Antalya and moved to a new career high of No. 128 on 20 March 2023.

Ranked No. 135, Marozsán made his ATP and Masters 1000 debut at the 2023 Italian Open after qualifying into the main draw.

He won his first Masters level match, defeating Corentin Moutet.

He lost to 16th seed and eventual champion Hubert Hurkacz in three sets.

He reached another quarterfinal at the 2023 Sofia Open defeating Roberto Bautista Agut coming back from a break down in the third set and converting his fourth match point, before losing to Jan-Lennard Struff.

At the 2024 BNP Paribas Open he reached the fourth round of a Masters for the third time in his career defeating lucky loser Jurij Rodionov, 24th seed Nicolás Jarry and qualifier Thiago Seyboth Wild.

Marozsán's record against players who have been ranked in the top 10, with those who are active in boldface.

Only ATP Tour main draw matches, Grand Slam main draw matches and Davis Cup matches are considered:

Active players are in boldface.

Marozsán represents Hungary at the Davis Cup, where he has a W/L record of 4–5.