| 2026-05-26 | Roland Garros | Clay | R128 | 71 |  Adolfo Daniel Vallejo | 24 |  Cameron Norrie (20) | 7-6(7) 2-0 RET | H2H | 3 | 81 | 5 | 5 | 68.8% | 78.8% | 46.7% | 1/1 |
| 2026-04-27 | Madrid Masters | Clay | R32 | 13 |  Flavio Cobolli (10) | 96 | Adolfo Daniel Vallejo | 6-3 6-2 | H2H | 3 | 73 | 3 | 3 | 50.9% | 86.2% | 50.0% | 1/1 |
| 2026-04-25 | Madrid Masters | Clay | R64 | 96 | Adolfo Daniel Vallejo | 21 |  Learner Tien (17) | 6-4 6-3 | H2H | 3 | 79 | 3 | 2 | 61.2% | 68.3% | 53.8% | 7/8 |
| 2026-04-23 | Madrid Masters | Clay | R128 | 96 | Adolfo Daniel Vallejo | 137 |  Grigor Dimitrov | 6-4 6-4 | H2H | 3 | 94 | 3 | 1 | 70.0% | 75.5% | 47.6% | 5/6 |
| 2026-04-02 | Houston | Clay | R16 | 21 | Tommy Paul (4) | 101 | Adolfo Daniel Vallejo | 3-6 6-4 6-4 | H2H | 3 | 144 | 3 | 4 | 57.0% | 66.7% | 46.5% | 5/10 |
| 2026-03-31 | Houston | Clay | R32 | 101 | Adolfo Daniel Vallejo | 82 | Zachary Svajda | 6-1 6-4 | H2H | 3 | 61 | 6 | 0 | 73.3% | 78.8% | 66.7% | 0/1 |
| 2026-02-26 | Santiago | Clay | R16 | 79 | Emilio Nava | 106 | Adolfo Daniel Vallejo | 7-5 6-3 | H2H | 3 | 89 | 12 | 3 | 72.7% | 85.4% | 38.9% | 8/9 |
| 2026-02-25 | Santiago | Clay | R32 | 106 | Adolfo Daniel Vallejo | 144 | Francesco Passaro | 6-3 3-3 RET | H2H | 3 | 57 | 2 | 1 | 61.5% | 75.0% | 46.7% | 3/5 |
| 2026-02-06 | Davis Cup WG1 PO: PAR vs ROU | Clay | RR | 104 | Adolfo Daniel Vallejo | 445 |  Stefan Palosi | 6-1 6-2 | H2H | 3 | 85 | 4 | 3 | 72.9% | 67.4% | 25.0% | 9/11 |
| 2026-02-06 | Davis Cup WG1 PO: PAR vs ROU | Clay | RR | 104 | Adolfo Daniel Vallejo | 714 | Gabriel Ghetu | 6-1 6-4 | H2H | 3 | 81 | 3 | 3 | 83.1% | 65.3% | 30.0% | 5/8 |
