| Challenger Dallas | 02/06 00:15 | 25 | [166] Mitchell Krueger v Thomaz Bellucci [330] | 6-7,6-4,7-6 | |
| Challenger Dallas | 02/03 18:15 | 24 | [330] Thomaz Bellucci v Christopher Eubanks [208] | 1-6,6-2,7-6 | |
| Challenger Newport Beach | 01/27 18:00 | 24 | [224] Ernesto Escobedo v Thomaz Bellucci [315] | 6-1,7-5 | |
| Challenger Ann Arbor | 01/07 23:30 | 25 | John McNally v Thomaz Bellucci | 6-3,6-4 | |
| Challenger Charlottesville | 10/29 15:50 | 25 | [139] Christopher O'Connell v Thomaz Bellucci [319] | 6-3,6-4 | |
| Challenger Charlottesville | 10/28 17:05 | 24 | [319] Thomaz Bellucci v Edan Leshem [409] | 7-5,6-4 | |
| Challenger Las Vegas | 10/14 18:00 | 24 | [424] Nicolas Mejia v Thomaz Bellucci [321] | 4-6,6-1,6-3 | |
| Challenger Campinas | 10/04 19:30 | 27 | [154] Federico Coria v Thomaz Bellucci [315] | 6-4,7-6 | |
| Challenger Campinas | 10/03 22:10 | 26 | Thomaz Bellucci v Leonardo Mayer | Walkover | |
| Challenger Campinas | 10/01 23:40 | 25 | [315] Thomaz Bellucci v Christian Lindell [352] | 7-6,0-0 | |
| Challenger Biella | 09/16 11:00 | 24 | [313] Thomaz Bellucci v Andrea Collarini [229] | 3-6,3-6 | |
| Challenger Szczecin | 09/12 12:35 | 26 | [49] Albert Ramos-Vinolas v Thomaz Bellucci [313] | 7-5,6-2 | |
| Challenger Szczecin | 09/11 12:50 | 25 | [465] Ronald Slobodchikov v Thomaz Bellucci [313] | 4-6,3-6 | |
| Challenger Genova | 09/03 08:30 | 24 | [303] Alex Molcan v Thomaz Bellucci [257] | 6-4,7-5 | |
| Challenger Como | 08/29 09:10 | 25 | [257] Thomaz Bellucci v Dmitry Popko [236] | 3-6,3-6 | |
| Challenger L'Aquila | 08/21 10:15 | 25 | [342] Thiago Seyboth Wild v Thomaz Bellucci [254] | 7-5,7-6 | |
| Challenger Meerbusch | 08/15 09:00 | 26 | [363] Tak Khunn Wang v Thomaz Bellucci [263] | 6-1,6-2 | |
| Challenger Meerbusch | 08/14 11:30 | 25 | Kai Breitbach v Thomaz Bellucci | 2-6,4-6 | |
| Challenger Amersfoort | 07/17 12:10 | 25 | [264] Thomaz Bellucci v Jelle Sels [306] | 1-6,4-6 | |
| Challenger Perugia | 07/09 19:15 | 25 | [174] Federico Gaio v Thomaz Bellucci [258] | 6-3,6-2 | |
| Challenger Perugia | 07/08 17:10 | 24 | [283] Kenny de Schepper v Thomaz Bellucci [258] | 5-7,6-3,2-6 | |
| Challenger Francavilla | 04/25 13:10 | 26 | [146] Oscar Otte v Thomaz Bellucci [212] | Retired | |
| Challenger Francavilla | 04/24 13:05 | 25 | [212] Thomaz Bellucci v Facundo Arguello [203] | 7-6,6-2 | |
| Challenger Francavilla | 04/23 10:40 | 24 | [309] Aldin Setkic v Thomaz Bellucci [212] | 1-6,2-6 | |
| Challenger Tunis | 04/20 11:00 | 28 | [221] Joao Domingues v Thomaz Bellucci [223] | 6-4,6-4 | |
| Challenger Tunis | 04/19 11:00 | 27 | [223] Thomaz Bellucci v Attila Balazs [262] | 6-2,6-2 | |
| Challenger Tunis | 04/18 11:20 | 26 | [223] Thomaz Bellucci v Ruben Bemelmans [167] | 2-6,6-3,6-3 | |
| Challenger Tunis | 04/17 15:55 | 25 | [156] Quentin Halys v Thomaz Bellucci [223] | 6-1,4-6,2-6 | |
| Challenger Tunis | 04/15 11:50 | 24 | [251] Daniel Masur v Thomaz Bellucci [223] | 6-2,2-6,5-7 | |
| Challenger Murcia | 04/09 10:40 | 25 | [212] Sergio Gutierrez-Ferrol v Thomaz Bellucci [226] | 7-6,6-3 |