- Tournament: N/A
- Round: N/A
- Opponent: N/A
- DOB: 1998-03-22
- Birthplace: Slovakia
- Height: 76.0 cm
- Weight: 187.0 kg
- Plays: R
- Current World Rank: N/A
- Hard: 4-7
- Clay: 3-5
- Grass: 1-2
| Tournament | Date | Sets | Round | Winner | Loser |
|---|---|---|---|---|---|
| Australian Open | Jan 13, 2025 | 6-3, 0-6, 6-3, 7-6 (8-6) | First Round | Sebastian Korda | Lukas Klein |
| Belgrade Open | Nov 7, 2024 | 3-6, 7-6 (7-3), 6-3 | Quarter Finals | Jiri Lehecka | Lukas Klein |
| Belgrade Open | Nov 5, 2024 | 6-4, 7-6 (8-6) | Second Round | Lukas Klein | Tomas Martin Etcheverry |
| Belgrade Open | Nov 4, 2024 | 6-4, 6-2 | First Round | Lukas Klein | James Duckworth |
| Chengdu Open | Sep 20, 2024 | 7-6 (7-2), 3-6, 6-4 | Second Round | Nicolas Jarry | Lukas Klein |
| Chengdu Open | Sep 18, 2024 | 7-6 (7-3), 6-4 | First Round | Lukas Klein | Adam Walton |
| Generali Open | Jul 22, 2024 | 6-4, 1-6, 7-6 (7-3) | First Round | Sumit Nagal | Lukas Klein |
| EFG Swiss Open Gstaad | Jul 18, 2024 | 6-3, 6-7 (7-9), 6-4 | Second Round | Quentin Halys | Lukas Klein |
| EFG Swiss Open Gstaad | Jul 16, 2024 | 7-6 (7-4), 2-6, 7-5 | First Round | Lukas Klein | Stan Wawrinka |
| Mutua Madrid Open | Apr 26, 2024 | 6-7 (5-7), 6-1, 6-4 | Second Round | Tommy Paul | Lukas Klein |
| Tournament | Date | Sets | Round | Winner | Loser |
|---|---|---|---|---|---|
| Australian Open | Jan 13, 2025 | 6-3, 0-6, 6-3, 7-6 (8-6) | First Round | Sebastian Korda | Lukas Klein |
| Australian Open | Jan 17, 2024 | 7-5, 3-6, 4-6, 7-6 (7-5), 7-6 (10-7) | Second Round | Alexander Zverev | Lukas Klein |
| Australian Open | Jan 15, 2024 | 7-6 (7-0), 4-6, 7-6 (7-3), 6-3 | First Round | Lukas Klein | SoonWoo Kwon |
