Level, 1 wins each over 2 singles meetings since 2024. Last meeting on 17/03/2026 at W75 Kofu.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 17/03/2026 | W75 Kofu | Round 1 | hard | Costoulas | 6-3 6-4 |
| 09/07/2024 | W75 The Hague | Round 1 | clay | Serban | 6-1 2-6 3-6 |
| hard | Serban 0 - 1 Costoulas |
| clay | Serban 1 - 0 Costoulas |
| 2026 | Serban 0 - 1 Costoulas |
| 2024 | Serban 1 - 0 Costoulas |
168 wins, 136 losses since 2021 (55.3%).
Last matches: D D D D D
208 wins, 137 losses since 2021 (60.3%).
Last matches: V D D D V
Level, 1 wins each over 2 singles meetings since 2024.
On 17/03/2026, at W75 Kofu (Round 1): Sofia Costoulas won 6-3 6-4.