| Challenger Modena | 06/27 17:00 | 25 | [326] Pol Martin Tiffon v Thiago Monteiro [96] | 7-6,3-6,3-6 | |
| Challenger Parma | 06/22 11:00 | 27 | [256] Stefano Travaglia v Thiago Monteiro [95] | 6-3,7-6 | |
| Challenger Parma | 06/21 10:30 | 26 | Blaz Rola v Thiago Monteiro | 4-6,2-6 | |
| Challenger Parma | 06/20 15:00 | 25 | [232] Andrea Pellegrino v Thiago Monteiro [95] | 4-6,4-6 | |
| French Open | 05/30 16:10 | 23 | [98] Thiago Monteiro v Yannick Hanfmann [65] | 3-6,5-7,7-6,7-6,4-6 | |
| French Open | 05/29 09:00 | 23 | Thiago Monteiro v Benjamin Bonzi | Cancelled | |
| ATP Geneva | 05/21 09:00 | 19 | [98] Thiago Monteiro v Daniel Rincon [290] | 6-3,4-6,3-6 | |
| ATP Geneva | 05/20 09:00 | 14 | [98] Thiago Monteiro v Fernando Verdasco [292] | 6-2,6-2 | |
| ATP Rome | 05/13 10:45 | 24 | [16] Borna Coric v Thiago Monteiro [98] | 4-6,7-6,7-6 | |
| ATP Rome | 05/11 10:45 | 23 | [45] Adrian Mannarino v Thiago Monteiro [98] | 1-6,2-6 | |
| Challenger Cagliari | 05/03 08:00 | 25 | [117] Yosuke Watanuki v Thiago Monteiro [97] | Retired | |
| ATP Madrid | 04/28 12:35 | 24 | [12] Karen Khachanov v Thiago Monteiro [97] | 6-3,3-6,6-3 | |
| ATP Madrid | 04/26 17:30 | 23 | [97] Thiago Monteiro v Borna Gojo [110] | 7-6,4-6,6-3 | |
| ATP Munich | 04/17 13:10 | 25 | [89] Thiago Monteiro v Yannick Hanfmann [112] | 7-6,6-7,2-6 | |
| ATP Miami | 03/25 18:15 | 24 | [6] Felix Auger Aliassime v Thiago Monteiro [81] | 7-6,7-6 | |
| ATP Miami | 03/23 21:50 | 23 | [81] Thiago Monteiro v Jason Kubler [70] | 6-4,7-6 | |
| ATP Indian Wells | 03/09 20:15 | 23 | Thiago Monteiro v Guido Pella | 6-3,5-7,2-6 | |
| ATP Santiago | 03/03 21:10 | 27 | [66] Jaume Munar v Thiago Monteiro [84] | 6-3,3-6,6-2 | |
| ATP Santiago | 03/01 21:35 | 26 | [91] Marco Cecchinato v Thiago Monteiro [84] | 6-3,3-6,2-6 | |
| ATP Santiago | 02/28 17:00 | 25 | [84] Thiago Monteiro v Albert Ramos-Vinolas [50] | 7-5,4-6,7-5 | |
| ATP Rio De Janeiro | 02/23 00:00 | 26 | [83] Thiago Monteiro v Cameron Norrie [13] | 5-7,5-7 | |
| ATP Rio De Janeiro | 02/20 22:00 | 25 | [96] Dominic Thiem v Thiago Monteiro [83] | 1-6,6-3,6-7 | |
| ATP Buenos Aires | 02/13 20:05 | 25 | [78] Thiago Monteiro v Pedro Cachin [68] | 6-7,4-6 | |
| ATP Cordoba | 02/07 17:30 | 25 | [67] Federico Coria v Thiago Monteiro [78] | 6-7,6-1,6-2 | |
| Davis Cup | 02/04 15:05 | 45 | Thiago Monteiro v Rigele Te | Cancelled | |
| Davis Cup | 02/03 16:40 | 45 | Thiago Monteiro v Jie Cui | 6-3,6-4 | |
| Australian Open | 01/16 08:30 | 23 | [77] Thiago Monteiro v Constant Lestienne [55] | 3-6,6-7,3-6 | |
| ATP Auckland | 01/10 03:55 | 25 | [78] Jiri Lehecka v Thiago Monteiro [69] | 6-3,7-5 | |
| ATP Auckland | 01/08 01:35 | 19 | [71] Thiago Monteiro v Ajeet Rai [466] | 6-7,6-3,6-4 | |
| ATP Auckland | 01/07 01:45 | 14 | [71] Thiago Monteiro v Daniel Altmaier [94] | 3-6,7-5,7-6 |
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.