| Challenger Buenos Aires | 10/20 20:20 | 26 | [92] Thiago Monteiro v Nicolas Kicker [259] | 6-2,6-3 | |
| Challenger Buenos Aires | 10/19 15:40 | 25 | [92] Thiago Monteiro v Hernan Casanova [331] | 7-6,3-6,6-2 | |
| ATP Indian Wells | 10/07 19:55 | 23 | [92] Thiago Monteiro v Tennys Sandgren [102] | 4-6,3-6 | |
| Challenger Lisbon | 09/29 16:50 | 26 | [90] Thiago Monteiro v Andrea Pellegrino [258] | 3-6,6-7 | |
| Challenger Lisbon | 09/28 09:00 | 25 | [90] Thiago Monteiro v Alexandre Muller [201] | 6-4,6-4 | |
| Challenger Braga | 09/26 09:55 | 29 | [90] Thiago Monteiro v Nikola Milojevic [148] | 7-5,7-5 | |
| Challenger Braga | 09/25 11:35 | 28 | [90] Thiago Monteiro v Hugo Gaston [115] | 6-4,6-1 | |
| Challenger Braga | 09/24 11:55 | 27 | [90] Thiago Monteiro v Andrea Arnaboldi [286] | 4-6,6-4,6-2 | |
| Challenger Braga | 09/22 12:00 | 26 | Thiago Monteiro v Tiago Cacao | 6-1,6-1 | |
| Challenger Braga | 09/21 09:00 | 25 | [90] Thiago Monteiro v Peter Heller [413] | 6-3,6-3 | |
| Challenger Szczecin | 09/16 14:00 | 26 | [179] Marco Trungelliti v Thiago Monteiro [92] | 6-4,6-3 | |
| Challenger Szczecin | 09/13 13:50 | 25 | [203] Steven Diez v Thiago Monteiro [92] | 0-6,3-6 | |
| Challenger Tulln | 09/09 13:30 | 27 | [242] Mats Moraing v Thiago Monteiro [93] | 6-1,0-6,7-6 | |
| Challenger Tulln | 09/08 10:45 | 26 | [236] Lukas Rosol v Thiago Monteiro [93] | 6-7,1-6 | |
| Challenger Tulln | 09/07 14:35 | 25 | [282] Matthias Bachinger v Thiago Monteiro [93] | 6-3,1-6,1-6 | |
| US Open | 08/30 15:00 | 23 | [93] Thiago Monteiro v Daniel Evans [27] | 3-6,7-6,4-6,1-6 | |
| ATP Winston-Salem | 08/25 23:00 | 26 | [51] Frances Tiafoe v Thiago Monteiro [93] | 7-5,7-6 | |
| ATP Winston-Salem | 08/25 02:10 | 25 | Thiago Monteiro v Eduardo Nava | 7-5,6-1 | |
| ATP Winston-Salem | 08/22 21:20 | 24 | [94] Thiago Monteiro v James Duckworth [69] | 6-4,4-6,7-6 | |
| ATP Cincinnati | 08/14 15:35 | 14 | [54] Carlos Alcaraz v Thiago Monteiro [94] | 6-2,6-3 | |
| Olympics 2020 - Men | 07/24 04:25 | 24 | [48] Jan-Lennard Struff v Thiago Monteiro [95] | 6-3,6-4 | |
| ATP Bastad | 07/12 11:00 | 25 | [107] Yannick Hanfmann v Thiago Monteiro [93] | 6-2,7-5 | |
| Challenger Salzburg | 07/06 11:20 | 25 | [81] Thiago Monteiro v Nicolas Jarry [309] | 7-6,6-7,6-7 | |
| Wimbledon | 06/30 13:55 | 23 | [19] Felix Auger Aliassime v Thiago Monteiro [81] | 6-3,6-3,6-3 | |
| French Open | 06/02 16:50 | 24 | [80] Thiago Monteiro v Steve Johnson [88] | 3-6,7-6,6-7,6-3,3-6 | |
| French Open | 05/31 09:00 | 23 | [117] Francisco Cerundolo v Thiago Monteiro [80] | 3-6,4-6,3-6 | |
| French Open | 05/31 09:00 | 23 | Milos Raonic v Thiago Monteiro | Cancelled | |
| ATP Belgrade | 05/26 10:00 | 26 | [52] Federico Delbonis v Thiago Monteiro [79] | 7-6,3-6,6-4 | |
| ATP Belgrade | 05/24 17:35 | 25 | [88] Radu Albot v Thiago Monteiro [79] | 2-6,2-6 | |
| ATP Geneva | 05/18 12:25 | 25 | [78] Thiago Monteiro v Laslo Djere [54] | 7-6,3-6,5-7 |
Wikipedia - Thiago Monteiro (tennis)
Thiago Moura Monteiro (Brazilian Portuguese: [tʃiˈaɡu mõˈtejɾu]; born 31 May 1994) is a Brazilian professional tennis player.
Monteiro has a career-high ATP singles ranking of world No. 61 achieved on 17 October 2022. He also has a career-high ATP doubles ranking of No. 144, achieved on 31 January 2022. He is currently the No. 2 Brazilian tennis player.
On the ITF Junior Circuit, Monteiro peaked in the rankings at No. 2 on 2 February 2012, with his biggest junior singles title being the Grade A, Copa Gerdau in Porto Alegre, Brazil, in 2011.
In his first ATP match, as a wildcard ranked world No. 338 in the ATP 500 Rio de Janeiro in February 2016, Monteiro upset No. 9 Jo-Wilfried Tsonga in the first round. In the second round, Monteiro lost to eventual champion Pablo Cuevas. In his next tournament, the ATP 250 São Paulo, Monteiro won two matches (against former World No. 9 Nicolás Almagro, and Daniel Muñoz de la Nava), losing again to eventual champion Cuevas in the quarterfinals.
On May 8, 2016, Monteiro won his first ATP Challenger title in Aix-en-Provence, France. He defeated Carlos Berlocq in the final.