| Open da Austrália | 01/16 03:20 | 23 | [92] Daniel Altmaier v Frances Tiafoe [17] | 3-6,3-6,7-6,6-7 | |
| ATP - Auckland | 01/07 01:45 | 14 | [71] Thiago Monteiro v Daniel Altmaier [94] | 3-6,7-5,7-6 | |
| Challenger - Montevideo | 11/13 00:00 | 28 | [80] Daniel Altmaier v Tomas Martin Etcheverry [85] | 7-6,3-6,6-7 | |
| Challenger - Montevideo | 11/11 23:45 | 27 | [209] Nicolas Kicker v Daniel Altmaier [80] | 4-6,6-1,3-6 | |
| Challenger - Montevideo | 11/09 20:00 | 26 | [164] Felipe M R Alves v Daniel Altmaier [80] | 6-7,3-6 | |
| Challenger - Montevideo | 11/08 21:05 | 25 | [235] Juan Bautista Torres v Daniel Altmaier [80] | 2-6,2-6 | |
| Challenger - Guaiaquil | 11/06 17:55 | 29 | [71] Federico Coria v Daniel Altmaier [91] | 2-6,4-6 | |
| Challenger - Guaiaquil | 11/05 21:20 | 28 | [91] Daniel Altmaier v Marco Cecchinato [109] | 7-6,6-4 | |
| Challenger - Guaiaquil | 11/04 18:00 | 27 | [249] Jesper De Jong v Daniel Altmaier [91] | 2-6,6-3,3-6 | |
| Challenger - Guaiaquil | 11/03 17:50 | 26 | [234] Juan Bautista Torres v Daniel Altmaier [91] | 4-6,3-6 | |
| Challenger - Guaiaquil | 11/02 18:30 | 25 | [348] Thiago Seyboth Wild v Daniel Altmaier [91] | 6-1,6-7,2-6 | |
| Challenger - Lima | 10/30 18:00 | 29 | [106] Daniel Altmaier v Tomas Martin Etcheverry [89] | 6-1,6-7,6-4 | |
| Challenger - Lima | 10/29 19:55 | 28 | [73] Federico Coria v Daniel Altmaier [106] | 3-6,3-6 | |
| Challenger - Lima | 10/28 21:25 | 27 | [106] Daniel Altmaier v Santiago R Taverna [162] | 3-6,7-5,6-2 | |
| Challenger - Lima | 10/27 18:00 | 26 | [106] Daniel Altmaier v Franco Agamenone [159] | 7-5,3-6,6-3 | |
| Challenger - Lima | 10/25 19:15 | 25 | [106] Daniel Altmaier v Nicolas Kicker [201] | 5-7,7-5,6-4 | |
| Challenger - Coquimbo | 10/18 18:20 | 25 | Sumit Nagal v Daniel Altmaier | 6-2,7-6 | |
| Challenger - Campinas | 10/04 13:00 | 25 | [98] Daniel Altmaier v Remy Bertola [450] | 3-6,5-7 | |
| Challenger - Buenos Aires | 09/29 18:00 | 26 | [349] Roman A Burruchaga v Daniel Altmaier [96] | 7-6,7-5 | |
| Challenger - Buenos Aires | 09/26 18:30 | 25 | [276] Pol M Tiffon v Daniel Altmaier [96] | 4-6,3-6 | |
| Open dos EUA | 08/30 18:55 | 23 | [93] Daniel Altmaier v Jannik Sinner [13] | 7-5,2-6,1-6,6-3,1-6 | |
| ATP - Winston-Salem | 08/21 20:20 | 24 | [79] Soonwoo Kwon v Daniel Altmaier [80] | 6-1,6-4 | |
| ATP - Cincinnati | 08/13 21:40 | 14 | [30] Lorenzo Musetti v Daniel Altmaier [79] | 6-7,6-4,6-3 | |
| ATP - Montreal | 08/07 15:00 | 19 | [55] Fabio Fognini v Daniel Altmaier [79] | 6-3,4-6,6-2 | |
| ATP - Montreal | 08/06 15:00 | 14 | Jaden Weekes v Daniel Altmaier | 3-6,4-6 | |
| ATP - Umag | 07/26 15:40 | 25 | [116] Corentin Moutet v Daniel Altmaier [65] | 6-4,6-2 | |
| ATP - Hamburgo | 07/19 17:15 | 25 | [30] Francisco Cerundolo v Daniel Altmaier [56] | 2-6,6-4,6-2 | |
| ATP - Bastad | 07/11 11:25 | 25 | [134] Elias Ymer v Daniel Altmaier [62] | 6-4,7-6 | |
| Wimbledon | 06/27 18:15 | 23 | [61] Daniel Altmaier v Mikael Ymer [88] | 3-6,5-7,5-7 | |
| ATP - Maiorca | 06/23 11:00 | 27 | [64] Daniel Altmaier v Benjamin Bonzi [56] | 3-6,4-6 |
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.