| Challenger - Como | 08/30 13:10 | 25 | [106] Daniel Altmaier v Joao Domingues [243] | 6-2,6-0 | |
| Challenger - Varsóvia | 08/27 09:15 | 26 | [106] Daniel Altmaier v Camilo Ugo Carabelli [296] | 4-6,6-7 | |
| Challenger - Varsóvia | 08/25 11:45 | 25 | Daniel Altmaier v Leo Borg | Retired | |
| Challenger - Lüedenscheid | 08/22 11:00 | 29 | [262] Nicolas Jarry v Daniel Altmaier [122] | 6-7,6-4,3-6 | |
| Challenger - Lüedenscheid | 08/21 14:20 | 28 | [122] Daniel Altmaier v Juan Manuel Cerundolo [139] | 6-2,7-6 | |
| Challenger - Lüedenscheid | 08/20 16:40 | 27 | [332] Javier Barranco Cosano v Daniel Altmaier [122] | 4-6,7-6,5-7 | |
| Challenger - Lüedenscheid | 08/19 15:00 | 26 | Julien Cagnina v Daniel Altmaier | 6-7,3-6 | |
| Challenger - Lüedenscheid | 08/17 16:00 | 25 | [368] Genaro Alberto Olivieri v Daniel Altmaier [121] | 2-6,2-6 | |
| Challenger - Meerbusch | 08/13 15:45 | 27 | [124] Daniel Altmaier v Marcelo T B Vera [193] | 4-6,6-1,6-7 | |
| Challenger - Meerbusch | 08/12 15:45 | 26 | [124] Daniel Altmaier v Vit Kopriva [201] | 7-6,3-6,6-3 | |
| Challenger - Meerbusch | 08/10 15:45 | 25 | [124] Daniel Altmaier v Alejandro Tabilo [164] | 6-0,7-5 | |
| ATP - Kitzbuhel | 07/30 10:30 | 28 | [135] Daniel Altmaier v Pedro Martinez [97] | 6-4,3-6,3-6 | |
| ATP - Kitzbuhel | 07/29 10:45 | 27 | [135] Daniel Altmaier v Gianluca Mager [74] | 6-1,6-7,6-3 | |
| ATP - Kitzbuhel | 07/28 14:20 | 26 | [135] Daniel Altmaier v Marco Cecchinato [83] | 6-4,6-4 | |
| ATP - Kitzbuhel | 07/27 12:40 | 25 | [50] Laslo Djere v Daniel Altmaier [135] | 6-4,3-6,3-6 | |
| ATP - Umag | 07/24 16:00 | 28 | [59] Richard Gasquet v Daniel Altmaier [152] | 7-6,3-6,6-3 | |
| ATP - Umag | 07/23 17:00 | 27 | [152] Daniel Altmaier v Dusan Lajovic [45] | 6-2,6-4 | |
| ATP - Umag | 07/22 16:35 | 26 | [75] Gianluca Mager v Daniel Altmaier [152] | 6-4,1-6,5-7 | |
| ATP - Umag | 07/20 14:30 | 25 | [152] Daniel Altmaier v Corentin Moutet [88] | Retired | |
| ATP - Umag | 07/19 14:30 | 19 | [152] Daniel Altmaier v Matija Pecotic [343] | 3-6,6-4,6-3 | |
| ATP - Umag | 07/18 14:00 | 14 | [149] Daniel Altmaier v Flavio Cobolli [340] | 2-6,6-3,6-1 | |
| ATP - Hamburgo | 07/13 11:30 | 25 | [149] Daniel Altmaier v Filip Krajinovic [44] | 3-6,7-6,1-6 | |
| Challenger - Brunsvique | 07/10 13:30 | 29 | [137] Henri Laaksonen v Daniel Altmaier [166] | 1-6,2-6 | |
| Challenger - Brunsvique | 07/10 09:00 | 28 | Daniel Altmaier v Marvin Moeller | 7-5,6-0 | |
| Challenger - Brunsvique | 07/08 15:00 | 27 | [166] Daniel Altmaier v Elias Ymer [167] | 6-3,6-3 | |
| Challenger - Brunsvique | 07/07 11:15 | 26 | [166] Daniel Altmaier v Mario V. Martinez [179] | 6-3,6-2 | |
| Challenger - Brunsvique | 07/05 14:10 | 25 | [166] Daniel Altmaier v Zdenek Kolar [223] | 6-2,7-5 | |
| Wimbledon | 06/23 15:15 | 19 | [118] Benjamin Bonzi v Daniel Altmaier [168] | 6-4,6-3 | |
| Wimbledon | 06/22 10:00 | 14 | [166] Daniel Altmaier v Maximilian Marterer [198] | 6-2,6-4 | |
| ATP - Halle | 06/14 10:50 | 25 | [81] Jordan Thompson v Daniel Altmaier [166] | 6-2,7-6 |
Wikipedia - Daniel Altmaier
Daniel Altmaier (German pronunciation: [ˈdaːni̯eːl ˈaltmaɪ̯ɐ]; born 12 September 1998) is a German professional tennis player. He has a career high ATP singles ranking of world No. 47, achieved on 2 October 2023. He is the current German No. 3.