| ATP Rome | 05/09 09:00 | 19 | [58] Tommy Paul v Thiago Monteiro [78] | 7-5,4-6,7-6 | |
| ATP Rome | 05/08 08:00 | 14 | [105] Mikhail Kukushkin v Thiago Monteiro [78] | 6-7,6-7 | |
| ATP Madrid | 05/01 09:00 | 14 | [92] Marcos Giron v Thiago Monteiro [78] | 6-4,6-7,7-6 | |
| ATP Munich | 04/27 11:05 | 25 | [35] Nikoloz Basilashvili v Thiago Monteiro [78] | 6-2,6-3 | |
| ATP Barcelona | 04/19 16:05 | 24 | [76] Thiago Monteiro v Jaume Munar [86] | 3-6,5-7 | |
| ATP Monte Carlo | 04/10 09:30 | 14 | [78] Thiago Monteiro v Joao Sousa [107] | 5-7,2-6 | |
| ATP Miami | 03/25 19:25 | 23 | Kevin Anderson v Thiago Monteiro | Cancelled | |
| ATP Buenos Aires | 03/03 16:00 | 26 | [42] Miomir Kecmanovic v Thiago Monteiro [74] | 5-7,6-3,6-4 | |
| ATP Buenos Aires | 03/01 23:00 | 25 | [97] Roberto Carballes Baena v Thiago Monteiro [74] | 2-6,3-6 | |
| ATP Cordoba | 02/26 17:30 | 27 | [74] Thiago Monteiro v Juan Manuel Cerundolo [335] | 2-6,6-2,3-6 | |
| ATP Cordoba | 02/25 17:30 | 26 | [74] Thiago Monteiro v Roberto Carballes Baena [96] | 6-3,6-4 | |
| ATP Cordoba | 02/24 01:40 | 25 | [74] Thiago Monteiro v Joao Menezes [199] | 6-3,6-3 | |
| Australian Open | 02/11 01:00 | 24 | [8] Andrey Rublev v Thiago Monteiro [74] | 6-4,6-4,7-6 | |
| Australian Open | 02/09 00:00 | 23 | [74] Thiago Monteiro v Andrej Martin [103] | 7-6,6-1,6-2 | |
| ATP Great Ocean Road Open | 02/06 03:30 | 28 | [83] Thiago Monteiro v Stefano Travaglia [71] | 3-6,4-6 | |
| ATP Great Ocean Road Open | 02/05 05:20 | 27 | [83] Thiago Monteiro v Jordan Thompson [52] | 6-4,6-4 | |
| ATP Great Ocean Road Open | 02/04 23:30 | 26 | [146] Carlos Alcaraz v Thiago Monteiro [83] | 6-7,3-6 | |
| ATP Great Ocean Road Open | 02/03 05:05 | 25 | [320] Matthew Ebden v Thiago Monteiro [83] | 7-6,4-6,3-6 | |
| ATP Great Ocean Road Open | 02/02 08:20 | 24 | [83] Thiago Monteiro v Thomas Fancutt [437] | 6-4,6-4 | |
| ATP Great Ocean Road Open | 02/02 08:20 | 24 | Thiago Monteiro v Vasek Pospisil | Cancelled | |
| ATP Delray Beach | 01/10 01:35 | 26 | [84] Thiago Monteiro v John Isner [25] | 4-6,6-7 | |
| ATP Delray Beach | 01/07 16:00 | 25 | [281] Thomaz Bellucci v Thiago Monteiro [84] | 3-6,5-7 | |
| Challenger Sao Paulo | 11/25 15:05 | 26 | [84] Thiago Monteiro v Maxime Janvier [211] | 6-7,7-6,4-6 | |
| Challenger Sao Paulo | 11/24 15:35 | 25 | [84] Thiago Monteiro v Gastao Elias [427] | 6-3,6-2 | |
| Challenger Orlando | 11/19 15:00 | 26 | [84] Thiago Monteiro v Brandon Nakashima [202] | 4-6,3-6 | |
| Challenger Orlando | 11/17 18:30 | 25 | [84] Thiago Monteiro v Stefan Kozlov [375] | 6-1,6-3 | |
| Challenger Orlando | 11/17 15:00 | 25 | Thiago Monteiro v JC Aragone | Cancelled | |
| Challenger Cary | 11/12 18:30 | 26 | [84] Thiago Monteiro v Mikael Torpegaard [198] | 6-4,3-6,4-6 | |
| Challenger Cary | 11/10 16:00 | 25 | [84] Thiago Monteiro v Guilherme Clezar [268] | Retired | |
| French Open | 10/03 11:00 | 25 | [63] Marton Fucsovics v Thiago Monteiro [84] | 7-5,6-1,6-3 |
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.