Level, 1 wins each over 2 singles meetings since 2026. Last meeting on 23/04/2026 at Mutua Madrid Open - Madrid.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 23/04/2026 | Mutua Madrid Open - Madrid | Round 1 | clay | Kjaer | 1-0 |
| 19/01/2026 | Australian Open - Melbourne | Round 1 | hard | Opelka | 4-6 3-6 4-6 |
| clay | Opelka 0 - 1 Kjaer |
| hard | Opelka 1 - 0 Kjaer |
| 2026 | Opelka 1 - 1 Kjaer |
90 wins, 85 losses since 2021 (51.4%).
Last matches: D D D V V
114 wins, 70 losses since 2021 (62.0%).
Last matches: D V D V V
Level, 1 wins each over 2 singles meetings since 2026.
On 23/04/2026, at Mutua Madrid Open - Madrid (Round 1): Nicolai Budkov Kjaer won 1-0.