| ATP - Pune | 02/02 07:30 | 26 | [108] Radu Albot v Daniel Altmaier [85] | 6-3,4-6,4-6 | |
| ATP - Pune | 01/31 14:30 | 25 | [228] Prajnesh Gunneswaran v Daniel Altmaier [85] | 6-7,2-6 | |
| Open da Austrália | 01/17 09:20 | 23 | [3] Alexander Zverev v Daniel Altmaier [87] | 7-6,6-1,7-6 | |
| ATP - Sydney | 01/10 08:00 | 25 | [37] Fabio Fognini v Daniel Altmaier [84] | 6-3,7-5 | |
| ATP - Sydney | 01/10 00:00 | 19 | [84] Daniel Altmaier v Sebastian Baez [99] | 6-7,5-7 | |
| ATP - Sydney | 01/09 00:00 | 14 | [84] Daniel Altmaier v Michail Pervolarakis [399] | 6-4,6-1 | |
| ATP - Adelaide | 01/03 01:55 | 25 | [89] Thiago Monteiro v Daniel Altmaier [84] | 6-2,3-6,7-6 | |
| Challenger - Puerto Vallarta | 11/29 01:00 | 29 | [141] Alejandro Tabilo v Daniel Altmaier [100] | 3-6,6-3,3-6 | |
| Challenger - Puerto Vallarta | 11/28 00:00 | 28 | [249] Michael Mmoh v Daniel Altmaier [100] | 4-6,2-6 | |
| Challenger - Puerto Vallarta | 11/26 23:30 | 27 | [483] Zachary Svajda v Daniel Altmaier [100] | 6-4,6-7,3-6 | |
| Challenger - Puerto Vallarta | 11/25 23:15 | 26 | [480] Govind Nanda v Daniel Altmaier [100] | 3-6,3-6 | |
| Challenger - Puerto Vallarta | 11/23 22:25 | 25 | [467] Michael Redlicki v Daniel Altmaier [100] | 6-7,1-6 | |
| Challenger - Champaign | 11/18 18:35 | 26 | [98] Daniel Altmaier v Yosuke Watanuki [306] | 2-6,1-6 | |
| Challenger - Champaign | 11/16 18:20 | 25 | [98] Daniel Altmaier v Malek Jaziri [302] | 6-3,6-4 | |
| Challenger - Knoxville | 11/14 18:00 | 29 | [178] Christopher Eubanks v Daniel Altmaier [105] | 6-3,6-4 | |
| Challenger - Knoxville | 11/13 19:05 | 28 | [246] Michael Mmoh v Daniel Altmaier [105] | 6-3,3-6,4-6 | |
| Challenger - Knoxville | 11/13 00:20 | 27 | [149] Jack Sock v Daniel Altmaier [105] | 6-3,5-7,6-7 | |
| Challenger - Knoxville | 11/10 15:00 | 26 | [185] Blaz Rola v Daniel Altmaier [105] | 6-7,4-6 | |
| Challenger - Knoxville | 11/09 16:25 | 25 | Adam Walton v Daniel Altmaier | 3-6,2-6 | |
| Challenger - Las Vegas | 10/28 19:30 | 26 | [111] Daniel Altmaier v Aleksandar Kovacevic [352] | 6-7,3-6 | |
| Challenger - Las Vegas | 10/26 18:00 | 25 | [111] Daniel Altmaier v Yasutaka Uchiyama [186] | 7-6,6-1 | |
| Challenger - Bogotá | 10/21 18:15 | 26 | [354] Alexis Galarneau v Daniel Altmaier [110] | 6-3,3-6,6-3 | |
| Challenger - Bogotá | 10/19 20:55 | 25 | [315] Dalibor Svrcina v Daniel Altmaier [110] | 4-6,1-6 | |
| ATP - Indian Wells | 10/09 22:30 | 24 | [28] Grigor Dimitrov v Daniel Altmaier [114] | 6-4,6-2 | |
| ATP - Indian Wells | 10/07 18:00 | 23 | [114] Daniel Altmaier v Sam Querrey [89] | 6-2,6-4 | |
| Challenger - Lima | 09/29 16:45 | 26 | [113] Daniel Altmaier v Nicolas Kicker [286] | 6-2,2-6,4-6 | |
| Challenger - Lima | 09/27 16:30 | 25 | [113] Daniel Altmaier v Guido Andreozzi [265] | 7-6,6-7,6-2 | |
| Challenger - Como | 09/04 13:20 | 28 | [106] Daniel Altmaier v Juan Manuel Cerundolo [135] | Retired | |
| Challenger - Como | 09/03 10:55 | 27 | [106] Daniel Altmaier v Riccardo Bonadio [307] | 7-6,6-3 | |
| Challenger - Como | 09/01 09:45 | 26 | [106] Daniel Altmaier v Joao Menezes [224] | 6-0,7-5 |
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.