Facundo Díaz Acosta

Facundo Díaz Acosta (born 15 December 2000) is an Argentine professional tennis player. He has a career high ATP singles ranking of world No. 47 achieved on 22 April 2024. He also has a career high ATP doubles ranking of No. 173 achieved on 28 November 2022.

He has won one singles ATP title at the 2024 Argentina Open. He competes mainly on the ATP Challenger Tour and has won five Challenger singles titles. He is the current Argentinian No. 5 in singles.

2020–2022: ATP debut, Maiden Challenger title
Díaz Acosta made his ATP main draw debut at the 2020 Argentina Open after receiving a wildcard for the singles and doubles main draws.

In May 2022, Díaz Acosta won his first Challenger title at the Dove Men+Care 2022 Challenger Coquimbo in Chile on clay.

2023–2024: Major and Masters debuts, First ATP title, top 50
He recorded his first ATP win at the 2023 Argentina Open as a wildcard against his compatriot Federico Coria and achieved his best ranking as world No. 134 following his second ATP Challenger title at the 2023 Savannah Challenger. Díaz Acosta made his Grand Slam main draw debut at the 2023 French Open – Men's singles after entering the draw as a lucky loser. He also entered the 2023 US Open losing to John Isner in the first round. Díaz Acosta, made his Australian Open debut losing to 12th seed Taylor Fritz in five sets.

He reached his first ATP quarterfinal at the 2024 Córdoba Open defeating two compatriots, qualifier and ATP debutant Federico Agustín Gómez and lucky loser Thiago Agustin Tirante. The following week at the 2024 Argentina Open Díaz Acosta reached back-to-back quarterfinals defeating compatriot and fourth seed Francisco Cerundolo in straight sets. He made his first ATP semifinal defeating Dusan Lajovic setting up again a meeting at this tournament with Federico Coria whom he defeated again this time to reach his first ATP final. He won his first ATP title without dropping a set the whole tournament, defeating third seed Nicolás Jarry in the final. As a result he reached a new career-high ranking in the top 60. In the next ATP 500 tournament in Rio he defeated Stan Wawrinka in straight sets. As a result, he moved to a new career-high in the top 55. Next, he lost to Sebastián Báez. The following week he played in Santiago, where he won his first round match against Pedro Cachín, before losing against Sebastian Báez.

He made his ATP Masters 1000 debut at the 2024 Miami Open, losing his first round match to Alexei Popyrin in straight sets. At the next Masters in Monaco, he played in the qualifying competition, defeating fellow Argentinian Diego Schwartzman in straight sets in the first round before losing to Sumit Nagal in a deciding third set. Following the loss he entered the main draw as a lucky loser, but lost to Roberto Bautista Agut in straight sets in the first round.

Following his second round win at the 2024 Barcelona Open Banc Sabadell over 15th seed Borna Ćorić, his first top 50 win, he reached the top 50 in the live rankings. Later defeating Fábián Marozsán in the third round, coming back from a set down to win the match 3-6 6-3 6-1, achieving a career high in the live rankings as the world number #46. In the quarterfinals he faced Stefanos Tsitsipas, losing the match 6-4 3-6 6-7(10), having 2 matchpoints and saving 2 matchpoints before eventually losing.