Z. Bergs and D. Altmaier are level 1-1 in their head-to-head since 2018 over 2 matches.
| Surface | Z. Bergs | D. Altmaier |
|---|---|---|
| Grass | 1 | 0 |
| Clay | 0 | 1 |
| Date | Winner | Score | Event |
|---|---|---|---|
| June 24, 2026 | Z. Bergs | 1 - 0 | Eastbourne · 1/8-finals · grass |
| April 13, 2023 | D. Altmaier | 2 - 0 | Sarasota Challenger Men · 1/8-finals · clay |