| Challenger Columbus | 09/20 14:00 | 26 | John McNally v Dominik Koepfer | 4-6,6-4,4-6 | |
| Challenger Columbus | 09/18 17:00 | 25 | [374] David Perez Sanz v Dominik Koepfer [178] | 1-6,0-6 | |
| Challenger Cary | 09/13 17:50 | 27 | [188] Dominik Koepfer v Reilly Opelka [143] | 6-7,4-6 | |
| Challenger Cary | 09/12 19:50 | 26 | [194] Alexei Popyrin v Dominik Koepfer [188] | 7-6,6-7,6-7 | |
| Challenger Cary | 09/11 21:10 | 25 | [321] Roberto Ortega-Olmedo v Dominik Koepfer [188] | 6-3,5-7,1-6 | |
| Challenger Chicago | 09/08 19:00 | 28 | [222] Dominik Koepfer v Reilly Opelka [173] | 3-6,6-7 | |
| Challenger Chicago | 09/07 17:40 | 27 | [256] JC Aragone v Dominik Koepfer [222] | 4-6,2-6 | |
| Challenger Chicago | 09/06 17:50 | 26 | [222] Dominik Koepfer v Mitchell Krueger [267] | 4-6,7-6,6-2 | |
| Challenger Chicago | 09/05 15:00 | 25 | [222] Dominik Koepfer v Vincent Millot [352] | 6-3,6-4 | |
| ATP Winston-Salem | 08/23 00:35 | 26 | [76] Taro Daniel v Dominik Koepfer [243] | 7-6,7-6 | |
| ATP Winston-Salem | 08/21 21:00 | 25 | [61] Tennys Sandgren v Dominik Koepfer [243] | 2-6,6-7 | |
| ATP Winston-Salem | 08/19 19:00 | 164 | [95] Radu Albot v Dominik Koepfer [245] | 6-4,4-6,6-3 | |
| ATP Winston-Salem | 08/18 21:15 | 64 | [309] Thomaz Bellucci v Dominik Koepfer [245] | 2-6,6-1,2-6 | |
| Challenger Portoroz | 08/10 21:20 | 28 | [224] Constant Lestienne v Dominik Koepfer [263] | 6-3,6-2 | |
| Challenger Portoroz | 08/09 20:10 | 27 | [231] Gian Marco Moroni v Dominik Koepfer [263] | 4-6,6-3,1-6 | |
| Challenger Portoroz | 08/08 19:10 | 26 | [263] Dominik Koepfer v Luca Vanni [167] | 4-6,6-1,7-5 | |
| Challenger Portoroz | 08/07 14:00 | 25 | Nik Razborsek v Dominik Koepfer | 7-6,5-7,6-7 | |
| Challenger Binghamton | 07/27 16:25 | 27 | [98] Jordan Thompson v Dominik Koepfer [228] | 6-4,6-1 | |
| Challenger Binghamton | 07/26 20:20 | 26 | [406] Edan Leshem v Dominik Koepfer [228] | Retired | |
| Challenger Binghamton | 07/26 13:00 | 25 | [427] Jared Hiltzik v Dominik Koepfer [228] | 3-6,5-7 | |
| ATP Newport Qual | 07/15 18:35 | 64 | [239] Dominik Koepfer v Victor Estrella Burgos [189] | 2-6,3-6 | |
| Challenger Winnipeg | 07/12 15:00 | 26 | [239] Dominik Koepfer v Jason Kubler [147] | 1-6,2-6 | |
| Challenger Winnipeg | 07/10 18:20 | 25 | [239] Dominik Koepfer v Stefano Napolitano [247] | 6-4,6-3 | |
| Wimbledon Qual | 06/28 11:35 | 45 | [240] Dominik Koepfer v Norbert Gombos [186] | 6-2,3-6,6-2,4-6,5-7 | |
| Wimbledon Qual | 06/26 16:50 | 45 | [106] Gerald Melzer v Dominik Koepfer [240] | 6-2,4-6,2-6 | |
| Wimbledon Qual | 06/25 11:25 | 44 | [239] Dominik Koepfer v Tatsuma Ito [167] | 6-4,6-3 | |
| Challenger Ilkley Qual | 06/16 18:05 | 45 | [243] Stefano Napolitano v Dominik Koepfer [236] | 5-7,6-4,6-4 | |
| Challenger Nottingham | 06/12 12:25 | 25 | Dominik Koepfer v Daniel Evans | 3-6,5-7 | |
| Challenger Nottingham Qual | 06/11 10:00 | 54 | [236] Dominik Koepfer v Frederik Nielsen [160] | 6-1,4-6,1-6 | |
| Challenger Nottingham Qual | 06/10 15:45 | 46 | Dominik Koepfer v Mark Whitehouse | 7-6,6-1 |
Wikipedia - Dominik Koepfer
Dominik Koepfer (born 29 April 1994), also spelled Köpfer, is a German professional tennis player. He achieved a career-high ATP singles ranking of world No. 49 on 4 March 2024, and a doubles ranking of No. 92 on 14 February 2022. He played college tennis at Tulane University.