| Challenger - Gérone | 03/26 13:00 | 25 | Souza, Joao Olavo v Felix Gill | Cancelled | |
| Challenger - San Luis Potosí | 04/18 21:05 | 26 | Marcelo Tomas Barrios Vera v Souza, Joao Olavo | Walkover | |
| Challenger - San Luis Potosí | 04/17 19:40 | 25 | [422] Souza, Joao Olavo v Mohamed Safwat [191] | 6-3,6-4 | |
| Challenger - San Luis Potosí | 04/16 21:50 | 24 | Lopez Villasenor, Gerardo v Souza, Joao Olavo | 5-7,7-6,3-6 | |
| Challenger - Santiago | 03/05 20:40 | 25 | [411] Souza, Joao Olavo v Arguello, Facundo [195] | 6-4,3-6,4-6 | |
| Challenger - Santiago | 03/04 19:50 | 24 | [411] Souza, Joao Olavo v Granollers, Gerard [452] | 6-1,6-3 | |
| Sao Paulo, Brazil | 02/23 17:05 | 64 | [164] Alessandro Giannessi v Souza, Joao Olavo [416] | 7-6,6-3 | |
| Challenger - Morelos | 02/19 17:20 | 25 | [416] Souza, Joao Olavo v Quiroz, Roberto [182] | 4-6,0-6 | |
| Challenger - Morelos | 02/18 18:05 | 24 | Souza, Joao Olavo v Patino, Luis | 6-4,6-3 | |
| Challenger Dallas | 02/04 17:40 | 24 | [403] Souza, Joao Olavo v Liam Broady [299] | 6-4,6-7,2-6 | |
| ITF M25 Weston | 02/02 15:30 | 28 | [380] Dmitry Popko v Souza, Joao Olavo [404] | 7-6,6-2 | |
| ITF M25 Weston | 02/01 18:00 | 27 | [404] Souza, Joao Olavo v Patrick Kypson [454] | Walkover | |
| ITF M25 Weston | 01/31 16:15 | 26 | Souza, Joao Olavo v Ricardo Rodriguez | Retired | |
| ITF M25 Weston | 01/30 18:00 | 25 | Souza, Joao Olavo v Olivares, Jose | 6-4,6-3 | |
| Challenger - Punta del Este | 01/22 21:35 | 25 | [126] Thiago Monteiro v Souza, Joao Olavo [409] | 7-6,6-2 | |
| Challenger - Punta del Este | 01/21 18:50 | 24 | Souza, Joao Olavo v Preston Brown | 6-2,6-4 | |
| Challenger Columbus | 01/08 16:00 | 24 | [405] Souza, Joao Olavo v Goncalo Oliveira [284] | 4-6,1-6 | |
| Orlando, USA | 01/01 15:00 | 25 | [400] Souza, Joao Olavo v Novikov, Dennis [257] | 3-6,2-6 | |
| Orlando, USA | 12/31 17:50 | 24 | [356] Hiltzik, Jared v Souza, Joao Olavo [400] | 6-2,5-7,1-6 | |
| ITF Brazil F9 | 11/18 12:30 | 29 | Souza, Joao Olavo v Lindell, Christian | Retired | |
| ITF Brazil F9 | 11/17 13:00 | 28 | Souza, Joao Olavo v Blumenberg, Alex | 6-3,6-1 | |
| ITF Brazil F9 | 11/16 15:55 | 27 | Souza, Joao Olavo v Reis Da Silva, Joao Lucas | 6-4,5-7,6-4 | |
| ITF Brazil F9 | 11/15 18:30 | 26 | Souza, Joao Olavo v Okano, Joao Pedro | 6-2,6-1 | |
| ITF Brazil F9 | 11/13 18:00 | 25 | Souza, Joao Olavo v Mateus Alves | 6-4,7-6 | |
| ITF Brazil F8 | 11/11 13:00 | 29 | Lindell, Christian v Souza, Joao Olavo | 1-6,6-7 | |
| ITF Brazil F8 | 11/10 15:30 | 28 | Santos, Nicolas v Souza, Joao Olavo | 2-6,6-7 | |
| ITF Brazil F8 | 11/09 21:15 | 27 | Jose Pereira v Souza, Joao Olavo | 6-3,5-7,4-6 | |
| ITF Brazil F8 | 11/07 17:00 | 26 | Tsuchiya, Alexandre v Souza, Joao Olavo | 4-6,4-6 | |
| ITF Brazil F8 | 11/06 23:00 | 25 | Blumenberg, Alex v Souza, Joao Olavo | 6-7,6-7 | |
| ITF Brazil F7 | 11/04 12:00 | 29 | [422] Felipe M R Alves v Souza, Joao Olavo [410] | 3-6,3-6 |