G. Heide and N. Mejia are level 1-1 in their head-to-head since 2018 over 2 matches.
| Surface | G. Heide | N. Mejia |
|---|---|---|
| Grass | 0 | 1 |
| Clay | 1 | 0 |
| Date | Winner | Score | Event |
|---|---|---|---|
| June 24, 2026 | N. Mejia | 2 - 0 | Wimbledon · Semi-finals · grass |
| June 21, 2023 | G. Heide | 2 - 0 | Cali Challenger Men · 1/8-finals · clay |