Daniel Altmaier - ATP #51 (2025-10-13)
| atpworldtour.com | ATP | Country |  Germany |
| Wikipedia | Eng / Fr | Birth | - |
| Career best ranking | 46 - 2023-10-16 | Résidence |  Unknown |
| Height | - | ||
| Weight | - |
| Conditions | W | D | ratio |
|---|---|---|---|
| Hard (in.) | 8 | 7 | 53.33% |
| Hard (out.) | 7 | 11 | 38.89% |
| Grass | 1 | 3 | 25.00% |
| Clay | 6 | 7 | 46.15% |
| TOTAL | 22 | 28 | 44.00% |
| # | Date | Categ | Tournament | Conditions | Round | #Rank | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2025-11-03 | 250 |  Open de Moselle | Hard (in.) | QF | #51 |  #47 Lorenzo Sonego | ||
| 2 | 2025-11-03 | 250 | Open de Moselle | Hard (in.) | 8e | #51 | #97 Hugo Gaston | ||
| 3 | 2025-11-03 | 250 | Open de Moselle | Hard (in.) | 16e | #51 | #28 Arthur Rinderknech | ||
| 4 | 2025-10-27 | 1000 | Masters de Paris-Bercy | Hard (in.) | 8e | #51 |  #13 Felix Auger-Aliassime | 3/6 6/3 6/2 | |
| 5 | 2025-10-27 | 1000 | Masters de Paris-Bercy | Hard (in.) | 16e | #51 |  #12 Casper Ruud | 6/3 7/5 | |
| 6 | 2025-10-27 | 1000 | Masters de Paris-Bercy | Hard (in.) | 32e | #51 |  #54 Marcos Giron | 6/2 7/6(5) | |
| 7 | 2025-10-20 | 500 |  Vienna Open | Hard (in.) | 16e | #51 | #2 Jannik Sinner | 6/0 6/2 | |
| 8 | 2025-10-13 | 250 |  Bruxelles Open | Hard (in.) | 16e | #58 | #10000 Gilles Arnaud Bailly | 6/4 6/7(10) 6/3 | |
| 9 | 2025-09-29 | 1000 |  Shanghai Masters | Hard (out.) | 32e | #58 | #2 Jannik Sinner | 6/3 6/3 | |
| 10 | 2025-09-29 | 1000 | Shanghai Masters | Hard (out.) | 64e | #58 |  #100 Tristan Schoolkate | 6/3 6/4 | |
| 11 | 2025-09-22 | 500 |  Japan Open | Hard (out.) | 8e | #58 | #92 Aleksandar Vukic | 6/4 6/2 | |
| 12 | 2025-09-22 | 500 | Japan Open | Hard (out.) | 16e | #58 | #27 Denis Shapovalov | 7/5 6/3 | |
| 13 | 2025-08-25 | GS | US Open | Hard (out.) | 16e | #60 | #8 Alex De Minaur | 6/7(0) 6/3 6/4 2/0 ret. | |
| 14 | 2025-08-25 | GS | US Open | Hard (out.) | 32e | #60 |  #29 Stefanos Tsitsipas | 7/6(5) 1/6 4/6 6/3 7/5 | |
| 15 | 2025-08-25 | GS | US Open | Hard (out.) | 64e | #60 |  #72 Hamad Medjedovic | 7/5 6/7(3) 7/6(7) 6/7(5) 6/4 | |
| 16 | 2025-08-04 | 1000 | Cincinnati Masters | Hard (out.) | 64e | #59 |  #49 Roberto Bautista Agut | 7/6(5) 7/6(1) | |
| 17 | 2025-07-27 | 1000 | Rogers Cup - Canada | Hard (out.) | 64e | #59 | #167 Yosuke Watanuki | 3/6 6/1 6/4 | |
| 18 | 2025-07-21 | 500 | Washington Open | Hard (out.) | 32e | #59 | #41 Matteo Arnaldi | 4/6 6/2 7/6(2) | |
| 19 | 2025-07-14 | 250 |  Los Cabos Open | Hard (out.) | 8e | #59 | #103 Tristan Schoolkate | 6/3 6/4 | |
| 20 | 2025-07-14 | 250 | Los Cabos Open | Hard (out.) | 16e | #59 | #158 Mitchell Krueger | 6/4 6/3 | |
| 21 | 2025-06-30 | GS |  Wimbledon | Grass | 64e | #57 | #41 Gabriel Diallo | 6/1 6/2 6/4 | |
| 22 | 2025-06-23 | 250 | Mallorca Open | Grass | 8e | #56 | #88 Corentin Moutet | 7/6(3) 7/6(3) | |
| 23 | 2025-06-23 | 250 | Mallorca Open | Grass | 16e | #56 | #127 Fabio Fognini | 6/3 3/6 6/3 | |
| 24 | 2025-06-16 | 500 | Open de Halle | Grass | 16e | #51 |  #10 Daniil Medvedev | 6/3 6/3 | |
| 25 | 2025-05-25 | GS | Roland Garros | Clay | 8e | #66 | #15 Frances Tiafoe | 6/3 6/4 7/6(4) | |
| 26 | 2025-05-25 | GS | Roland Garros | Clay | 16e | #66 | #73 Hamad Medjedovic | 4/6 6/3 6/3 6/2 | |
| 27 | 2025-05-25 | GS | Roland Garros | Clay | 32e | #66 |  #88 Vit Kopriva | 6/2 4/6 6/3 7/5 | |
| 28 | 2025-05-25 | GS | Roland Garros | Clay | 64e | #66 | #4 Taylor Fritz | 7/5 3/6 6/3 6/1 | |
| 29 | 2025-05-19 | 500 | Hamburg European Open | Clay | 16e | #66 | #28 Felix Auger-Aliassime | 6/3 6/3 | |
| 30 | 2025-05-07 | 1000 | Masters de Rome | Clay | 64e | #68 |  #74 Francisco Comesana | 6/1 7/5 | |
| 31 | 2025-04-21 | 1000 | Masters de Madrid | Clay | 64e | #68 |  #56 Nicolas Jarry | 6/3 6/2 | |
| 32 | 2025-04-14 | 500 | Munich Open | Clay | 8e | #83 | #2 Alexander Zverev | 6/3 6/2 | |
| 33 | 2025-04-14 | 500 | Munich Open | Clay | 16e | #83 |  #101 Chun-Hsin Tseng | 7/6(5) 7/6(5) | |
| 34 | 2025-04-07 | 1000 |  Monte-Carlo Masters | Clay | 8e | #83 | #3 Carlos Alcaraz | 6/3 6/1 | |
| 35 | 2025-04-07 | 1000 | Monte-Carlo Masters | Clay | 16e | #83 | #144 Richard Gasquet | 7/5 5/7 6/2 | |
| 36 | 2025-04-07 | 1000 | Monte-Carlo Masters | Clay | 32e | #83 | #18 Felix Auger-Aliassime | 7/6(5) 6/3 | |
| 37 | 2025-03-31 | 250 |  Grand-Prix Hassan II | Clay | 16e | #81 |  #132 Otto Virtanen | 6/2 4/6 7/6(3) | |
| 38 | 2025-03-19 | 1000 | Miami Masters | Hard (out.) | 64e | #81 |  #193 Coleman Wong | 6/4 6/3 | |
| 39 | 2025-02-24 | 500 | Mexican Open | Hard (out.) | 8e | #73 | #24 Tomas Machac | 7/6(3) 6/1 | |
| 40 | 2025-02-24 | 500 | Mexican Open | Hard (out.) | 16e | #73 | #41 Miomir Kecmanovic | 4/6 6/4 6/3 | |
| 41 | 2025-02-10 | 250 | Open 13 | Hard (in.) | QF | #91 | #93 Hamad Medjedovic | 7/5 6/7(7) 6/4 | |
| 42 | 2025-02-10 | 250 | Open 13 | Hard (in.) | 8e | #91 | #95 Otto Virtanen | 6/4 6/3 | |
| 43 | 2025-02-10 | 250 | Open 13 | Hard (in.) | 16e | #91 | #81 Luca Nardi | 6/2 6/2 | |
| 44 | 2025-02-03 | 500 |  Rotterdam Open | Hard (in.) | QF | #91 | #8 Alex De Minaur | 6/1 6/4 | |
| 45 | 2025-02-03 | 500 | Rotterdam Open | Hard (in.) | 8e | #91 | #19 Arthur Fils | 6/4 3/6 7/5 | |
| 46 | 2025-02-03 | 500 | Rotterdam Open | Hard (in.) | 16e | #91 | #100 Aleksandar Kovacevic | 1/6 6/4 6/3 | |
| 47 | 2025-01-27 | 250 | Open Sud de France | Hard (in.) | 16e | #91 | #71 Bu Yunchaokete | 7/6(1) 6/3 | |
| 48 | 2025-01-12 | GS | Australian Open | Hard (out.) | 32e | #87 | #55 Gael Monfils | 7/5 6/3 7/6(3) | |
| 49 | 2025-01-12 | GS | Australian Open | Hard (out.) | 64e | #87 | #101 Francisco Comesana | 6/2 3/6 7/6(4) 4/6 6/4 | |
| 50 | 2025-01-06 | 250 |  Auckland Open | Hard (out.) | 16e | #87 | #57 Roberto Carballes Baena | 6/3 3/6 7/5 |
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