| ITF Ecuador F1 | 07/25 16:00 | 26 | Ignacio Carou v Martniez, Mateo Nicolas | 2-6,0-6 | |
| ITF Ecuador F1 | 07/24 16:50 | 25 | Quiroz, Diego v Martniez, Mateo Nicolas | 7-5,1-6,3-6 | |
| ITF USA F18 | 07/01 15:00 | 29 | Martniez, Mateo Nicolas v Gomez, Alejandro | 6-4,6-4 | |
| ITF USA F18 | 06/30 15:30 | 28 | Martniez, Mateo Nicolas v Charles Broom | 6-3,7-6 | |
| ITF USA F18 | 06/29 14:00 | 27 | Martniez, Mateo Nicolas v Hamilton, Grey | 6-0,6-3 | |
| ITF USA F18 | 06/28 16:25 | 26 | Knight, Alexander v Martniez, Mateo Nicolas | 2-6,0-6 | |
| ITF USA F18 | 06/26 14:00 | 25 | Martniez, Mateo Nicolas v Talcott, Aidan | 6-0,6-1 | |
| ITF USA F16 | 06/22 21:05 | 27 | Martniez, Mateo Nicolas v Alex Rybakov | 6-4,1-6,2-6 | |
| ITF USA F16 | 06/21 23:05 | 26 | Martniez, Mateo Nicolas v Speicher, John | 6-2,6-1 | |
| ITF USA F16 | 06/19 17:00 | 25 | Gomez, Alejandro v Martniez, Mateo Nicolas | 6-4,4-6,5-7 | |
| ITF USA F14 | 06/15 16:50 | 27 | Martniez, Mateo Nicolas v Alex Rybakov | 7-6,6-7,3-6 | |
| ITF USA F14 | 06/14 19:00 | 26 | Jose Pereira v Martniez, Mateo Nicolas | 4-6,6-2,6-7 | |
| ITF USA F14 | 06/13 17:00 | 25 | Felder, Marcel v Martniez, Mateo Nicolas | 4-6,2-6 | |
| ITF Argentina F3 | 05/29 16:00 | 25 | Grassi Mazzuchi, Juan Pablo v Martniez, Mateo Nicolas | 7-6,5-7,6-2 | |
| ITF Argentina F2 | 05/22 13:00 | 25 | Martniez, Mateo Nicolas v Oscar Jose Gutierrez | 6-4,4-6,2-6 | |
| ITF Argentina F1 | 05/16 12:00 | 26 | Martniez, Mateo Nicolas v Rodriguez Taverna, Santiago FA | 1-6,3-6 | |
| ITF Argentina F1 | 05/15 12:00 | 25 | Leonardo Aboian v Martniez, Mateo Nicolas | 1-6,1-6 | |
| Tunisia F14, Singles Qualifying | 04/15 09:00 | 29 | Martniez, Mateo Nicolas v Brands, Daniel | 6-7,5-7 | |
| Tunisia F14, Singles Qualifying | 04/14 10:55 | 28 | Jankovits, Yannick v Martniez, Mateo Nicolas | 4-6,2-6 | |
| Tunisia F14, Singles Qualifying | 04/13 09:00 | 27 | Martniez, Mateo Nicolas v Michael Vrbensky | 6-1,7-6 | |
| Tunisia F14, Singles Qualifying | 04/12 11:50 | 26 | Perez Sanz, David v Martniez, Mateo Nicolas | 4-6,1-6 | |
| Tunisia F14, Singles Qualifying | 04/11 11:35 | 25 | Martniez, Mateo Nicolas v Clement Tabur | 6-2,6-1 | |
| Tunisia F14, Singles Qualifying | 04/09 09:00 | 44 | Martniez, Mateo Nicolas v Adam Jones | 6-3,6-1 | |
| Tunisia F14, Singles Qualifying | 04/08 11:30 | 44 | Martniez, Mateo Nicolas v Gorodynskyi, Vladyslav | 6-1,6-1 | |
| ITF Tunisia F13 | 04/04 12:30 | 25 | Konecny, Michal v Martniez, Mateo Nicolas | 3-6,6-2,6-2 | |
| ITF Tunisia F13 | 04/01 09:00 | 54 | Martniez, Mateo Nicolas v Ernaelsteen, Victor | 6-2,6-3 | |
| ITF Greece F5 | 03/27 12:50 | 25 | Martniez, Mateo Nicolas v Jannik Sinner | 4-6,2-6 | |
| ITF Greece F5 | 03/26 07:30 | 62 | Martniez, Mateo Nicolas v Erdbories, Tillmann | 6-3,6-0 | |
| ITF Greece F5 | 03/25 13:30 | 62 | Martniez, Mateo Nicolas v Michael Shaw | 6-3,6-4 | |
| ITF Greece F5 | 03/24 07:30 | 62 | Martniez, Mateo Nicolas v Echeverry, Daniel | 6-0,6-1 |