Challenger Santiago 10/07 15:35 26 [206] Thiago Agustin Tirante v Gerald Melzer [484] 4-6,2-6
Challenger Santiago 10/05 14:00 25 [157] Juan Ignacio Londero v Thiago Agustin Tirante [206] 2-6,3-6
Challenger Lima 09/28 20:25 25 [204] Thiago A Tirante v Gonzalo Lama [336] 3-6,6-3,1-6
Challenger Ambato 09/26 17:30 29 [121] Juan Pablo Varillas v Thiago Agustin Tirante [255] 5-7,5-7
Challenger Ambato 09/25 16:00 28 [255] Thiago Agustin Tirante v Facundo Mena [269] 7-5,5-7,6-3
Challenger Ambato 09/24 16:00 27 Thiago Agustin Tirante v Gerald Melzer 6-3,6-4
Challenger Ambato 09/23 16:55 26 [255] Thiago Agustin Tirante v Carlos Gomez-Herrera [359] 7-6,3-6,7-6
Challenger Ambato 09/21 21:20 25 [255] Thiago Agustin Tirante v Cristian Rodriguez [406] 7-6,4-6,7-6
Challenger Quito 09/17 16:00 27 [417] Gonzalo Lama v Thiago Agustin Tirante [267] 7-6,7-6
Challenger Quito 09/16 15:00 26 [293] Adrian Menendez-Maceiras v Thiago Agustin Tirante [267] 5-7,2-6
Challenger Quito 09/14 18:50 25 [492] Patrick Kypson v Thiago Agustin Tirante [267] 7-6,1-6,3-6
Challenger Como 08/31 08:00 25 Jack Draper v Thiago Agustin Tirante Cancelled
Challenger Barletta 08/28 18:50 28 [281] Thiago Agustin Tirante v Flavio Cobolli [313] 1-6,6-1,5-7
Challenger Barletta 08/27 12:40 27 [281] Thiago Agustin Tirante v Nicolas Alvarez [405] 6-2,6-2
Challenger Barletta 08/25 18:00 26 [122] Andrej Martin v Thiago Agustin Tirante [281] 6-7,2-6
Challenger Barletta 08/23 13:15 25 [281] Thiago Agustin Tirante v Petros Chrysochos [374] 6-1,4-6,6-2
Challenger Verona 08/16 11:00 19 [280] Thiago Agustin Tirante v Matheus P De Almeida [342] 3-6,6-3,5-7
Challenger Cordenons 08/05 12:45 26 [98] Stefano Travaglia v Thiago A Tirante [283] 6-7,6-3,6-4
Challenger Cordenons 08/03 12:50 25 [185] Quentin Halys v Thiago A Tirante [283] 4-6,6-7
Challenger Trieste 08/01 14:15 29 [328] Thiago A Tirante v Tomas Martin Etcheverry [166] 1-6,1-6
Challenger Trieste 07/31 14:50 28 [122] Damir Dzumhur v Thiago A Tirante [328] 3-6,3-6
Challenger Trieste 07/30 12:00 27 [328] Thiago A Tirante v Orlando Luz [312] 7-5,6-4
Challenger Trieste 07/28 11:35 26 [328] Thiago A Tirante v Riccardo Bonadio [274] 6-4,6-2
Challenger Trieste 07/27 11:30 25 [328] Thiago A Tirante v Andrea Pellegrino [242] 6-3,6-1
Challenger Trieste 07/26 12:35 19 [328] Thiago A Tirante v Giovanni Fonio [442] 6-3,6-3
Challenger Trieste 07/25 11:25 14 Thiago A Tirante v Matteo Arnaldi 6-2,6-2
Challenger Todi 07/14 13:00 26 [151] Federico Gaio v Thiago Agustin Tirante [329] 6-7,6-1,7-6
Challenger Todi 07/12 16:30 25 [380] Skander Mansouri v Thiago Agustin Tirante [329] 3-6,2-6
Challenger Perugia 07/04 10:40 14 Thiago A Tirante v Francesco Passaro 7-6,3-6,4-6
ITF M25 Bourg-en-Bresse 07/01 11:00 26 [424] Matheus P De Almeida v Thiago Agustin Tirante [329] 6-3,7-6

Thiago Agustín Tirante (born 10 April 2001) is an Argentine professional tennis player. He has a career-high ATP singles ranking of World No. 90 achieved on 15 April 2024 and a career-high doubles ranking of No. 257 achieved on 1 November 2021.

History

2019: Junior world No. 1

He achieved a career-high ITF juniors year-end ranking of No. 1 in the world in 2019. Tirante won the 2019 French Open – Boys' doubles title.

2021: Maiden Challenger title

He won his maiden Challenger title at the 2021 Ambato La Gran Ciudad in Ecuador.

2023-2024: ATP and Major debuts and first wins, top 100

He reached the final of the 2023 Mexico City Open where he lost to Dominik Koepfer. He reached the top 150 on 8 May 2023 following his second Challenger title at the 2023 Morelos Open in Mexico defeating top seed James Duckworth.

Ranked No. 153, he made his Grand Slam main draw debut at the 2023 French Open defeating Dominic Stricker in the last round of qualifying. He won his first Grand Slam match defeating 25th seed Botic van de Zandschulp.

In August, he made his ATP debut at the 2023 Los Cabos Open and recorded his first win at an ATP tournament over qualifier Gonzalo Lama. He won his third Challenger at the 2023 Open Bogotá over Gustavo Heide and reached a new career-high ranking of No. 111 on 2 October 2023. At the same tournament, he also won the doubles title with Renzo Olivo.

At the 2024 Córdoba Open, he reached the main draw as a lucky loser and recorded his third ATP win over an ATP debutant, wildcard Francisco Comesaña. He reached the top 100 following the 2024 Rio Open on 26 February 2024. Next he defeated João Fonseca in Santiago.

He won his fourth Challenger at the 2024 Mexico City Open without dropping a set and reached a new singles career-high of No. 91 on 8 April 2024.

In July, Tirante reached his first ATP Tour semifinal at the 2024 Swedish Open after a run which included wins over world No. 8 and defending champion, Andrey Rublev, his first top 10 win, and Roberto Carballés Baena in the quarterfinals, before losing to Nuno Borges.