Klein L.
01/Record by surface
25 starts on all surfaces. A count, not a record: the three records above are never added.
02/Round reached
| Stage | Entries ending here | Record at this round |
|---|---|---|
| Champion | 0 of 15 | |
| Quarterfinal | 1 of 15 | 0-1 in 1 |
| 2nd Round | 8 of 15 | 1-8 in 9 |
| 1st Round | 6 of 15 | 9-6 in 15 |
An entry is one tournament in one season; its stage is the last round the draw shows him in, and a champion’s is the trophy. The record at a round counts matches started at that round, so a walkover moves him on without a line here.
03/By level
| Level | Starts | Hard | Clay | Grass | Titles |
|---|---|---|---|---|---|
| ATP250 | 16 | 4-4 | 2-4 | 1-1 | 0 |
| Masters 1000 | 5 | 1-2 | 1-1 | none | 0 |
| Grand Slam | 4 | 1-2 | none | 0-1 | 0 |
04/By season
| Season | Starts | Hard | Clay | Grass | Finals | Titles | Rank, newest row |
|---|---|---|---|---|---|---|---|
| 2025 | 1 | 0-1 | none | none | 0 | 0 | 144 |
| 2024 | 17 | 6-6 | 2-3 | none | 0 | 0 | 153 |
| 2023 | 1 | 0-1 | none | none | 0 | 0 | 142 |
| 2022 | 1 | none | none | 0-1 | 0 | 0 | 243 |
| 2021 | 5 | none | 1-2 | 1-1 | 0 | 0 | 256 |
Each season is the same count over that season’s matches alone, each surface with its own starts. A season with a start on no grass court says none rather than 0-0. December openers file to the season they open. Finals counts the finals that crowned a champion, a walkover final among them, so Titles is a subset of it and a final lost shows in the gap; the surface columns count starts, which a walkover is not.
05/Head to head
A record, never a share: the most-met opponent is Baez S., 1-0 in 1 meeting. A percentage of meetings is a win probability wearing a hat, and this section prints none. Meetings are matches started; a walkover between the two is noted and counted in neither column.
06/Match log
| Opponent | Score | Date | Tournament | Surface | Round | Result | His rank |
|---|---|---|---|---|---|---|---|
| Korda S.No. 22 that day | 3-6, 6-0, 3-6, 6-7 | Jan 13, 2025 | Australian OpenGrand Slam, best of 5 | hard | 1st round | L | 144 |
| Lehecka J.No. 31 that day | 6-3, 6-7, 3-6 | Nov 7, 2024 | Belgrade OpenATP250 | hard | quarterfinal | L | 153 |
| Etcheverry T.No. 39 that day | 6-4, 7-6 | Nov 5, 2024 | Belgrade OpenATP250 | hard | 2nd round | W | 153 |
| Duckworth J.No. 77 that day | 6-4, 6-2 | Nov 4, 2024 | Belgrade OpenATP250 | hard | 1st round | W | 153 |
| Jarry N.No. 28 that day | 6-7, 6-3, 4-6 | Sep 20, 2024 | Chengdu OpenATP250 | hard | 2nd round | L | 127 |
| Walton A.No. 94 that day | 7-6, 6-4 | Sep 18, 2024 | Chengdu OpenATP250 | hard | 1st round | W | 127 |
| Nagal S.No. 80 that day | 4-6, 6-1, 6-7 | Jul 22, 2024 | Generali OpenATP250 | clay | 1st round | L | 119 |
| Halys Q.No. 192 that day | 3-6, 7-6, 4-6 | Jul 18, 2024 | Suisse Open GstaadATP250 | clay | 2nd round | L | 118 |
| Wawrinka S.No. 105 that day | 7-6, 2-6, 7-5 | Jul 16, 2024 | Suisse Open GstaadATP250 | clay | 1st round | W | 118 |
| Paul T.No. 16 that day | 7-6, 1-6, 4-6 | Apr 26, 2024 | Mutua Madrid OpenMasters 1000 | clay | 2nd round | L | 120 |
| Llamas Ruiz P.No. 146 that day | 6-1, 4-6, 7-6 | Apr 24, 2024 | Mutua Madrid OpenMasters 1000 | clay | 1st round | W | 120 |
| Michelsen A.No. 73 that day | 6-7, 2-6 | Mar 21, 2024 | Miami OpenMasters 1000 | hard | 1st round | L | 128 |
| Ruud C.No. 9 that day | 4-6, 6-7 | Mar 10, 2024 | BNP Paribas OpenMasters 1000 | hard | 2nd round | L | 141 |
| Moreno De Alboran N.No. 166 that day | 7-6, 6-4 | Mar 8, 2024 | BNP Paribas OpenMasters 1000 | hard | 1st round | W | 141 |
| Zverev A.No. 6 that day | 5-7, 6-3, 6-4, 6-7, 6-7 | Jan 18, 2024 | Australian OpenGrand Slam, best of 5 | hard | 2nd round | L | 163 |
| Kwon S.W.No. 697 that day | 7-6, 4-6, 7-6, 6-3 | Jan 16, 2024 | Australian OpenGrand Slam, best of 5 | hard | 1st round | W | 163 |
| Arnaldi M.No. 44 that day | 4-6, 6-3, 5-7 | Jan 3, 2024 | Brisbane InternationalATP250 | hard | 2nd round | L | 170 |
| Baez S.No. 28 that day | 4-6, 6-3, 6-4 | Jan 2, 2024 | Brisbane InternationalATP250 | hard | 1st round | W | 170 |
| Goffin D.No. 41 that day | 2-6, 4-6 | Feb 21, 2023 | Open 13ATP250 | hard | 1st round | L | 142 |
| Broady L.No. 132 that day | 6-4, 3-6, 5-7, 7-6, 3-6 | Jun 28, 2022 | WimbledonGrand Slam, best of 5 | grass | 1st round | L | 243 |
| Thompson J.No. 76 that day | 4-6, 4-6 | Jun 23, 2021 | Mallorca ChampionshipsATP250 | grass | 2nd round | L | 256 |
| Lajovic D.No. 41 that day | 6-4, 7-6 | Jun 21, 2021 | Mallorca ChampionshipsATP250 | grass | 1st round | W | 256 |
| Delbonis F.No. 52 that day | 6-3, 3-6, 4-6 | May 24, 2021 | Belgrade OpenATP250 | clay | 1st round | L | 254 |
| Schwartzman D.No. 9 that day | 4-6, 2-6 | Mar 4, 2021 | Argentina OpenATP250 | clay | 2nd round | L | 291 |
| Martin A.No. 103 that day | 6-4, 6-3 | Mar 2, 2021 | Argentina OpenATP250 | clay | 1st round | W | 291 |
Main-draw singles on the tour, 2021 to 2025, counted from the match rows. A match ended by retirement keeps the sets that were completed and is marked; a walkover is listed with no score and enters no count. Ranks are the tour’s ranking on the day of the match. No serve statistic appears on this page: the one archive that carries them is licensed for non-commercial use only. The ATP record runs through Aug 29, 2026.