| Challenger Calgary | 11/12 20:50 | 28 | [259] Dominik Koepfer v Gabriel Diallo [248] | 7-6,6-1 | |
| Challenger Calgary | 11/11 19:25 | 27 | [263] Harold Mayot v Dominik Koepfer [259] | 6-7,6-3,3-6 | |
| Challenger Calgary | 11/10 02:15 | 26 | Cleeve Harper v Dominik Koepfer | 4-6,1-6 | |
| Challenger Calgary | 11/07 22:55 | 25 | [435] Nick Chappell v Dominik Koepfer [259] | 2-6,6-7 | |
| Challenger Charleston | 09/27 14:00 | 25 | Gianni Ross v Dominik Koepfer | Cancelled | |
| Challenger Columbus | 09/21 15:30 | 25 | [359] Aidan Mchugh v Dominik Koepfer [165] | 3-6,7-6,7-6 | |
| Challenger Cary | 09/18 18:00 | 29 | [194] Dominik Koepfer v Michael Mmoh [154] | 5-7,3-6 | |
| Challenger Cary | 09/17 22:50 | 28 | [105] Denis Kudla v Dominik Koepfer [194] | 6-7,3-6 | |
| Challenger Cary | 09/16 23:40 | 27 | [446] Tennys Sandgren v Dominik Koepfer [194] | 4-6,2-6 | |
| Challenger Cary | 09/14 21:55 | 26 | [356] Keegan Smith v Dominik Koepfer [194] | 6-1,3-6,2-6 | |
| Challenger Cary | 09/13 00:10 | 25 | [220] Aleksandar Kovacevic v Dominik Koepfer [194] | 4-6,4-6 | |
| US Open | 08/23 20:50 | 14 | [207] Raul Brancaccio v Dominik Koepfer [159] | 7-6,6-4 | |
| Challenger Vancouver | 08/18 22:00 | 26 | [139] Dominik Koepfer v Constant Lestienne [94] | 7-5,5-7,3-6 | |
| Challenger Vancouver | 08/15 22:20 | 25 | [139] Dominik Koepfer v Zsombor Piros [160] | 6-2,6-3 | |
| ATP Washington | 08/02 23:10 | 25 | [145] Dominik Koepfer v Karen Khachanov [24] | 7-6,5-7,4-6 | |
| ATP Washington | 08/01 16:00 | 24 | [145] Dominik Koepfer v Soonwoo Kwon [77] | 3-6,6-3,6-4 | |
| ATP Washington | 07/31 14:00 | 19 | [141] Dominik Koepfer v Shintaro Mochizuki [353] | 6-3,6-4 | |
| ATP Washington | 07/30 14:00 | 45 | Dominik Koepfer v Ryan Colby | 6-0,6-0 | |
| ATP Atlanta | 07/26 23:35 | 25 | [141] Dominik Koepfer v James Duckworth [62] | 1-6,7-6,3-6 | |
| ATP Atlanta | 07/24 16:40 | - | Dominik Koepfer v Donald Young | 6-1,4-6,6-3 | |
| ATP Atlanta | 07/23 19:15 | 26 | [181] Borna Gojo v Dominik Koepfer [149] | 2-6,5-7 | |
| ATP Atlanta | 07/23 19:00 | 26 | John Millman v Dominik Koepfer | Cancelled | |
| Challenger Indianapolis | 07/22 19:25 | 27 | [149] Dominik Koepfer v Aleksandar Kovacevic [269] | 5-7,6-7 | |
| Challenger Indianapolis | 07/21 16:00 | 26 | [149] Dominik Koepfer v Li Tu [279] | 6-2,6-3 | |
| Challenger Indianapolis | 07/19 19:25 | 25 | [149] Dominik Koepfer v Enzo Couacaud [222] | 6-1,6-3 | |
| ATP Newport | 07/12 15:00 | 25 | [136] Dominik Koepfer v Christopher Eubanks [163] | 4-6,5-7 | |
| Wimbledon | 06/28 16:25 | 23 | [109] Daniel Elahi Galan v Dominik Koepfer [117] | 6-4,7-5,7-6 | |
| ATP Hertogenbosch | 06/07 11:00 | 25 | [96] Dominik Koepfer v Kamil Majchrzak [81] | 1-6,4-6 | |
| ATP Miami | 03/23 17:35 | 23 | [54] Mackenzie McDonald v Dominik Koepfer [64] | 6-7,6-4,6-4 | |
| ATP Indian Wells | 03/13 18:00 | 24 | [7] Andrey Rublev v Dominik Koepfer [51] | 7-5,6-4 |
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.