Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Manacor | 2020/01/14 10:35 | Monteiro, Joao v Cayre, Paul | 6-4,6-2 |
| ITF - M15 Manacor | 2020/01/12 10:00 | Monteiro, Joao v Blanco Damea, Alvaro | 6-2,6-2 |
| ITF M15 Cairo | 2019/12/11 10:35 | Monteiro, Joao v Jordan Correia Passos Do Carmo | 3-6,4-6 |
| ITF M15 Cairo | 2019/12/10 07:30 | Monteiro, Joao v Fares Zakaria | 4-6,6-2,10-8 |
| ITF M15 Cairo | 2019/12/09 09:00 | Monteiro, Joao v Borai, Ahmed | 6-2,6-0 |
| ITF M15 Cairo | 2019/12/02 07:30 | Edoardo Lavagno v Monteiro, Joao | 6-3,6-4 |
| ITF M15 Cairo | 2019/12/01 10:00 | Avraam, Christos v Monteiro, Joao | 0-6,1-6 |
| Challenger Maia | 2019/11/18 13:25 | Monteiro, Joao v Zdenek Kolar | 2-6,2-6 |
| ITF - M25 Naples | 2019/11/22 18:30 | Juan Pablo Ficovich v Peter Heller | 6-3,6-3 |
| ITF - M25 Naples | 2019/11/21 14:00 | Malla, Bastian v Peter Heller | 3-6,6-4,1-6 |
| ITF - M25 Naples | 2019/11/20 16:15 | Labrador, Daniel v Peter Heller | 0-6,2-6 |
| Houston, USA | 2019/11/12 20:15 | Bangoura, Sekou v Peter Heller | 0-6,6-4,6-2 |
| Houston, USA | 2019/11/11 19:10 | Alexander Ritschard v Peter Heller | 3-6,5-7 |
| ITF M25 Malibu | 2019/11/05 23:00 | Peter Heller v Felix Corwin | 2-6,6-7 |
| ITF - M15 Antalya | 2019/10/26 07:30 | Peter Heller v Slobodchikov, Ronald | 4-6,4-6 |
| ITF - M15 Antalya | 2019/10/25 07:00 | Peter Heller v Celebic, Ljubomir | 7-5,6-2 |