Match log updated: 2026-07-25 16:50 UTC
Lukas Klein — ATP Match Log
Main draw matches: 6 | W: 2 | L: 4 | Win %: 33.3%
| Opponent | Score | Result | H2H | Match Data | Date ↓ | Round | Tournament | Category | Surface |
|---|---|---|---|---|---|---|---|---|---|
| James Duckworth | 7-5 3-6 6-7(4) | L | H2H | Match data | Jul 26, 2021* | R64 | Tokyo Olympics | Olympics | Hard |
| Jordan Thompson | 4-6 4-6 | L | H2H | Match data | Jun 24, 2021* | R16 | Mallorca Championships | ATP 250 | Grass |
| Dusan Lajovic | 6-4 7-6(2) | W | H2H | Match data | Jun 23, 2021* | R32 | Mallorca Championships | ATP 250 | Grass |
| Denis Istomin | 6-3 2-6 6-4 | W | H2H | Match data | Jun 20, 2021* | Q2 | Mallorca Championships | ATP 250 | Grass |
| Pablo Cuevas | 6-3 6-4 | W | H2H | Match data | Jun 20, 2021* | Q1 | Mallorca Championships | ATP 250 | Grass |
| Federico Delbonis | 6-3 3-6 4-6 | L | H2H | Match data | May 27, 2021* | R32 | Belgrade 2 | ATP 250 | Clay |
| Christopher O'Connell | 6-7(7) 5-7 | L | H2H | Match data | May 24, 2021 | Q2 | Belgrade 2 | ATP 250 | Clay |
| Marko Tepavac | 6-4 6-1 | W | H2H | Match data | May 24, 2021 | Q1 | Belgrade 2 | ATP 250 | Clay |
| Mario Vilella Martinez | 4-6 2-6 | L | H2H | Match data | Mar 8, 2021 | Q1 | Chile Open | ATP 250 | Clay |
| Diego Schwartzman | 4-6 2-6 | L | H2H | Match data | Mar 5, 2021* | R16 | Argentina Open | ATP 250 | Clay |
| Andrej Martin | 6-4 6-3 | W | H2H | Match data | Mar 4, 2021* | R32 | Argentina Open | ATP 250 | Clay |
| Ernesto Escobedo | 6-2 6-3 | W | H2H | Match data | Mar 2, 2021* | Q3 | Argentina Open | ATP 250 | Clay |
| Thiago Seyboth Wild | 6-3 7-5 | W | H2H | Match data | Mar 1, 2021 | Q2 | Argentina Open | ATP 250 | Clay |
| Andrea Collarini | 6-4 7-5 | W | H2H | Match data | Mar 1, 2021 | Q1 | Argentina Open | ATP 250 | Clay |
| Ernesto Escobedo | 6-7(4) 6-4 1-6 | L | H2H | Match data | Feb 22, 2021 | Q1 | Cordoba | ATP 250 | Clay |
| Adrian Andreev | 3-6 6-7(7) | L | H2H | Match data | Jan 5, 2021 | Q1 | Antalya | ATP 250 | Hard |
10 qualifying matches shown in the table; qualifying is excluded from main-draw summaries and leaderboards. Estimated from the tournament schedule where an exact match date is unavailable. Arrows show an edition's recorded category and documented modern equivalent; unresolved editions keep their recorded category. Mapping details.