| 2026-02-06 | Davis Cup WG1 PO: MAR vs COL | Clay | RR | 177 |  Nicolas Mejia | 582 | MARTaha Baadi | 6-3 6-2 | H2H | 3 | 78 | 1 | 0 | 66.7% | 72.2% | 72.2% | 0/0 |
| 2026-02-06 | Davis Cup WG1 PO: MAR vs COL | Clay | RR | 177 | Nicolas Mejia | 556 | MARReda Bennani | 6-1 4-6 6-2 | H2H | 3 | 155 | 4 | 0 | 66.3% | 70.9% | 64.3% | 6/8 |
| 2025-09-12 | Davis Cup WG1 R1: SVK vs COL | Hard | RR | 325 |  Norbert Gombos | 200 | Nicolas Mejia | 6-4 6-4 | H2H | 3 | 96 | 6 | 0 | 73.6% | 79.5% | 71.4% | 0/0 |
| 2025-09-12 | Davis Cup WG1 R1: SVK vs COL | Hard | RR | 201 | Alex Molcan | 200 | Nicolas Mejia | 6-4 7-6(4) | H2H | 3 | 146 | 0 | 1 | 69.7% | 67.4% | 65.0% | 2/5 |
| 2025-07-14 | Los Cabos | Hard | R32 | 111 |  Nishesh Basavareddy | 244 | Nicolas Mejia (Q) | 6-4 6-1 | H2H | 3 | 82 | 5 | 1 | 52.3% | 78.3% | 71.4% | 1/1 |
| 2025-01-31 | Davis Cup WG1 PO: COL vs BRB | Clay | RR | 214 | Nicolas Mejia | - |  Xavier Lawrence | 6-2 6-0 | H2H | 3 | - | - | - | - | - | - | - |
| 2025-01-31 | Davis Cup WG1 PO: COL vs BRB | Clay | RR | 1869 | Darian King | 214 | Nicolas Mejia | 6-3 6-4 | H2H | 3 | - | - | - | - | - | - | - |
| 2024-09-14 | Davis Cup WG1 R1: JPN vs COL | Hard | RR | 205 |  Kei Nishikori | 237 | Nicolas Mejia | 6-4 6-4 | H2H | 3 | - | - | - | - | - | - | - |
| 2024-09-14 | Davis Cup WG1 R1: JPN vs COL | Hard | RR | 54 | Yoshihito Nishioka | 237 | Nicolas Mejia | 7-5 6-4 | H2H | 3 | - | - | - | - | - | - | - |
| 2024-08-18 | Winston-Salem | Hard | R64 | 68 |  Corentin Moutet | 235 | Nicolas Mejia | 7-6(5) 6-1 | H2H | 3 | 100 | 3 | 1 | 70.1% | 61.7% | 50.0% | 3/6 |
