Challenger Ambato 10/22 16:00 28 [258] Thiago Agustin Tirante v Facundo Bagnis [114] 3-6,7-6,6-7
Challenger Ambato 10/21 16:40 27 [258] Thiago Agustin Tirante v Facundo Mena [161] 6-2,7-5
Challenger Ambato 10/20 15:00 26 Thiago Agustin Tirante v Kiranpal Pannu 6-2,6-2
Challenger Ambato 10/18 15:00 25 Thiago Agustin Tirante v Alvaro G Meza 7-6,7-5
Challenger Rio De Janeiro 10/10 18:30 25 [243] Thiago Agustin Tirante v Juan Manuel Cerundolo [155] 1-6,7-5,6-7
Challenger Buenos Aires 09/27 15:50 25 [237] Thiago A Tirante v Facundo Bagnis [112] 1-6,4-6
Challenger Sibiu 09/20 07:30 25 [185] Thiago Agustin Tirante v Ivan Gakhov [288] 7-6,5-7,1-6
Challenger Szczecin 09/13 08:30 25 [171] Thiago Agustin Tirante v Dennis Novak [136] 6-7,3-6
Challenger Tulln 09/05 11:30 25 [114] Norbert Gombos v Thiago Agustin Tirante [171] 7-5,6-4
US Open 08/23 19:00 14 [118] Carlos Taberner v Thiago Agustin Tirante [161] 6-4,6-2
Challenger Santo Domingo 08/19 20:00 27 [99] Daniel Elahi Galan v Thiago Agustin Tirante [170] 6-3,7-6
Challenger Santo Domingo 08/17 21:10 26 [268] Nick Hardt v Thiago Agustin Tirante [170] 2-6,4-6
Challenger Santo Domingo 08/16 23:00 25 [170] Thiago Agustin Tirante v Juan Pablo Varillas [98] 3-6,6-4,7-5
Challenger Lima 08/14 17:00 29 [121] Camilo Ugo Carabelli v Thiago Agustin Tirante [197] 6-2,7-6
Challenger Lima 08/13 21:05 28 Gonzalo Bueno v Thiago Agustin Tirante 6-7,6-4,5-7
Challenger Lima 08/13 01:20 27 [197] Thiago Agustin Tirante v Juan Pablo Varillas [100] 6-4,6-3
Challenger Lima 08/11 18:45 26 [197] Thiago Agustin Tirante v Nick Chappell [462] 6-4,6-0
Challenger Lima 08/09 15:00 25 [197] Thiago Agustin Tirante v Conner Huertas Del Pino [254] 6-3,6-2
Challenger Zug 07/28 10:35 26 [171] Thiago Agustin Tirante v Alexander Ritschard [178] 6-7,4-6
Challenger Zug 07/25 14:25 25 [130] Facundo Mena v Thiago Agustin Tirante [171] 6-4,2-6,3-6
Challenger Tampere 07/20 10:25 26 [168] Thiago Agustin Tirante v Laurent Lokoli [241] 6-3,2-6,3-6
Challenger Tampere 07/19 09:00 25 [168] Thiago Agustin Tirante v Filip Horansky [178] 6-3,6-2
Challenger Verona 07/12 18:15 25 [170] Thiago Agustin Tirante v Marco Cecchinato [154] 5-7,3-6
Challenger Todi 07/08 10:00 26 [194] Thiago Agustin Tirante v Daniel Masur [221] 4-6,1-6
Challenger Todi 07/05 10:25 25 [194] Thiago Agustin Tirante v Andrey Chepelev [415] 4-6,6-3,6-2
Challenger Troyes 07/02 10:30 28 [291] Juan Bautista Torres v Thiago Agustin Tirante [194] 6-4,3-6,7-5
Challenger Troyes 07/01 14:50 27 [250] Michael Geerts v Thiago Agustin Tirante [194] 3-6,4-6
Challenger Troyes 07/01 10:05 26 [315] Filip C Jianu v Thiago Agustin Tirante [194] 4-6,7-6,2-6
Challenger Troyes 06/28 08:30 25 [278] Kacper Zuk v Thiago Agustin Tirante [194] 5-7,1-6
Wimbledon 06/22 12:50 19 [98] Jason Kubler v Thiago Agustin Tirante [197] 6-3,3-6,7-5

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.