| ATP Rome Qual | 05/13 17:05 | 45 | [54] Bellucci, Thomaz v Damir Dzumhur [89] | 6-2,6-3 | |
| ATP - Madrid | 05/08 13:30 | 24 | [54] Bellucci, Thomaz v Cuevas, Pablo [27] | 6-7,6-4,6-7 | |
| ATP Madrid Qual | 05/07 15:05 | 46 | [57] Bellucci, Thomaz v Youzhny, Mikhail [88] | 6-2,6-3 | |
| ATP Madrid Qual | 05/06 14:30 | 45 | [57] Bellucci, Thomaz v Evgeny Donskoy [95] | 7-6,6-2 | |
| ATP - Munich | 05/03 09:00 | 26 | [57] Bellucci, Thomaz v Yannick Hanfmann [273] | 6-7,6-4,5-7 | |
| ATP - Munich | 05/01 10:00 | 25 | [57] Bellucci, Thomaz v Mikhail Kukushkin [77] | 6-3,6-2 | |
| ATP - Barcelone | 04/25 13:45 | 24 | [56] Karen Khachanov v Bellucci, Thomaz [54] | 6-3,6-4 | |
| ATP - Houston | 04/16 19:00 | 29 | [29] Steve Johnson v Bellucci, Thomaz [65] | 6-4,4-6,7-6 | |
| ATP - Houston | 04/15 18:00 | 28 | [65] Bellucci, Thomaz v Ernesto Escobedo [91] | 5-7,6-4,6-2 | |
| ATP - Houston | 04/14 20:25 | 27 | Bellucci, Thomaz v Querrey, Sam | 6-4,3-6,6-3 | |
| ATP - Houston | 04/14 20:16 | - | [65] Bellucci, Thomaz v Querrey, Sam [25] | 6-4,3-6,5-3 | |
| ATP - Houston | 04/13 21:25 | 26 | [65] Bellucci, Thomaz v Gonzalez, Maximo [163] | 2-6,7-6,6-2 | |
| ATP - Houston | 04/12 19:20 | 25 | [65] Bellucci, Thomaz v Frances Tiafoe [89] | 7-5,1-6,6-2 | |
| Coupe Davis | 04/09 15:00 | 28 | [428] Endara, Ivan v Bellucci, Thomaz [67] | 6-7,4-6 | |
| Coupe Davis | 04/09 15:00 | 28 | Quiroz, Roberto v Bellucci, Thomaz | Cancelled | |
| Coupe Davis | 04/07 15:00 | 28 | [272] Emilio Gomez v Bellucci, Thomaz [67] | 2-6,4-6,7-6,6-4,4-6 | |
| ATP - Miami | 03/25 18:40 | 24 | [23] Isner, John v Bellucci, Thomaz [71] | 7-5,7-6 | |
| ATP - Miami | 03/24 17:05 | 23 | [71] Bellucci, Thomaz v Robert, Stephane [88] | 7-6,6-2 | |
| Irving, USA | 03/16 21:20 | 26 | [71] Bellucci, Thomaz v Bedene, Aljaz [105] | 6-4,6-7,1-6 | |
| Irving, USA | 03/15 18:50 | 25 | [155] Lukas Rosol v Bellucci, Thomaz [71] | 3-6,7-5,4-6 | |
| ATP - Indian Wells | 03/10 19:00 | 23 | [74] Herbert, Pierre-Hugues v Bellucci, Thomaz [71] | 7-6,6-7,6-3 | |
| Sao Paulo, Brazil | 03/01 00:25 | 25 | Bellucci, Thomaz v Diego Schwartzman | 2-6,0-6 | |
| ATP - Rio De Janeiro | 02/24 01:15 | 26 | Bellucci, Thomaz v Thiago Monteiro | 6-7,6-3,3-6 | |
| ATP - Rio De Janeiro | 02/21 22:15 | 25 | [5] Kei Nishikori v Bellucci, Thomaz [76] | 4-6,3-6 | |
| Quito, Ecuador | 02/11 20:00 | 28 | Estrella Burgos, Victor v Bellucci, Thomaz | 7-6,7-6 | |
| Quito, Ecuador | 02/10 21:45 | 27 | Bellucci, Thomaz v Renzo Olivo | 6-2,6-1 | |
| Quito, Ecuador | 02/08 21:25 | 26 | Bellucci, Thomaz v Tipsarevic, Janko | 7-6,7-6 | |
| Open d'Australie, Melbourne, Australie | 01/16 02:05 | 23 | [27] Bernard Tomic v Bellucci, Thomaz [62] | 6-2,6-1,6-4 | |
| Sydney, Australia | 01/08 05:10 | 25 | [61] Bellucci, Thomaz v Mahut, Nicolas [39] | 2-6,6-7 | |
| ATP Vienna Qual | 10/22 16:45 | 45 | Bellucci, Thomaz v Nikoloz Basilashvili | 2-6,6-7 |