L. Klein leads the head-to-head 4-0 since 2018 against O. Virtanen, over 4 matches.
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32 ATP & WTA matches analysed today
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By surface
| Surface | O. Virtanen | L. Klein |
| Hard | 0 | 3 |
| Clay | 0 | 1 |
Current ELO by surface
| Surface | O. Virtanen | L. Klein |
| Hard |
1701 (125-81) |
1611 (72-51) |
| Clay |
1590 (53-53) |
1743 (104-64) |
| Grass |
1800 (33-14) |
1606 (12-8) |
ELO is computed per surface from results since 2018; the win-loss pair is that surface's record.
Match history
| Date | Winner | Score | Event |
| Oct. 30, 2024 | L. Klein | 2 - 0 | Bratislava 2 Challenger Men · 1/16-finals · hard |
| July 21, 2024 | L. Klein | 2 - 0 | ATP Kitzbuhel · Final · clay |
| Oct. 12, 2023 | L. Klein | 2 - 0 | Bratislava 2 Challenger Men · 1/8-finals · hard |
| Oct. 11, 2022 | L. Klein | 2 - 0 | Ismaning · 1/16-finals · hard |
Recent form
L. Klein — 3-2 in the last 5
| Date | | Opponent | Score | Event |
| Feb. 12, 2026 |
L |
M. Echargui |
0 - 2 |
Pau · 1/8-finals · hard |
| Feb. 10, 2026 |
W |
D. Added |
0 - 0 |
Pau · 1/16-finals · hard |
| Jan. 15, 2026 |
L |
M. Zheng |
2 - 1 |
Australian Open · Final · hard |
| Jan. 14, 2026 |
W |
D. Merida Aguilar |
1 - 2 |
Australian Open · Semi-finals · hard |
| Jan. 12, 2026 |
W |
Z. Piros |
0 - 2 |
Australian Open · Quarter-finals · hard |
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