| Challenger de Fairfield | 10/10 19:15 | 25 | [381] Christian Langmo v Strong Kirchheimer [390] | 6-4,6-4 | |
| Challenger Tiburón | 10/01 17:00 | 14 | Christian Langmo v Nishesh Basavareddy | 3-6,4-6 | |
| Challenger de Charleston | 09/24 14:00 | 14 | [366] Christian Langmo v Darian King [484] | 6-4,6-7,6-7 | |
| Challenger de Cary | 09/14 19:00 | 26 | [82] Rinky Hijikata v Christian Langmo [381] | 6-4,4-6,6-3 | |
| Challenger de Cary | 09/13 17:00 | 25 | Donald Young v Christian Langmo | 5-7,4-6 | |
| Challenger de Cassis | 09/05 11:55 | 25 | [326] Maxime Janvier v Christian Langmo [394] | 6-3,6-3 | |
| Challenger de Cassis | 09/04 08:00 | 19 | Christian Langmo v Alexey Vatutin | 1-6,6-1,6-4 | |
| Challenger de Cassis | 09/03 08:00 | 14 | [394] Christian Langmo v Juan Carlos Aguilar [336] | 6-2,6-4 | |
| Challenger de Mallorca | 08/29 10:15 | - | [350] Peter Gojowczyk v Christian Langmo [394] | 7-6,6-1 | |
| Challenger de Mallorca | 08/28 08:00 | 14 | Rafael Giotis v Christian Langmo | 3-6,6-7 | |
| ITF M25 Idanha-a-Nova | 08/25 08:00 | 27 | [392] Christian Langmo v Dan Added [286] | 2-6,6-7 | |
| ITF M25 Idanha-a-Nova | 08/24 11:20 | 26 | Christian Langmo v Tiago Silva | 3-6,7-6,6-4 | |
| ITF M25 Idanha-a-Nova | 08/22 09:45 | 25 | Christian Langmo v Lorenzo Claverie | 6-7,7-5,6-3 | |
| Challenger de Lexington | 08/02 00:55 | 25 | [204] Tung-Lin Wu v Christian Langmo [347] | 6-4,6-4 | |
| Challenger de Salinas | 07/24 18:05 | 25 | [217] Kaichi Uchida v Christian Langmo [345] | 7-6,0-6,6-0 | |
| Challenger de Granby | 07/17 00:45 | 14 | Christian Langmo v Blaise Bicknell | 1-6,6-7 | |
| Challenger de Chicago | 07/10 16:40 | 19 | [326] Tristan Schoolkate v Christian Langmo [341] | 6-3,1-6,7-5 | |
| Challenger de Chicago | 07/09 17:20 | 14 | [392] Nathan Ponwith v Christian Langmo [341] | 4-6,5-7 | |
| Challenger de Bloomfield Hills | 07/03 18:25 | 14 | Christian Langmo v Ozan Baris | 4-6,3-6 | |
| Challenger de Cali | 06/20 23:30 | 25 | [144] Alejandro Tabilo v Christian Langmo [335] | 7-6,6-4 | |
| Challenger de Palmas del Mar | 06/13 23:30 | 25 | Christian Langmo v Kei Nishikori | 2-6,4-6 | |
| Challenger de Tyler | 06/08 16:00 | 26 | Christian Langmo v Adam Neff | 6-7,6-7 | |
| Challenger de Tyler | 06/06 18:00 | 25 | [123] Michael Mmoh v Christian Langmo [353] | 3-6,6-7 | |
| Challenger de Tyler | 06/05 18:45 | 19 | [236] Dane Sweeny v Christian Langmo [353] | 6-4,7-5 | |
| Challenger de Tyler | 06/04 18:45 | 14 | [403] Alafia Ayeni v Christian Langmo [353] | 4-6,6-7 | |
| Challenger de Little Rock | 05/30 17:15 | 25 | [387] Nathan Ponwith v Christian Langmo [353] | 2-6,7-5,7-5 | |
| Challenger de Little Rock | 05/29 16:20 | 19 | [353] Christian Langmo v Bernard Tomic [390] | 7-6,2-6,6-0 | |
| Challenger de Little Rock | 05/28 17:00 | 14 | [353] Christian Langmo v Gustavo Heide [442] | 6-2,4-6,6-3 | |
| Challenger de Oeiras | 05/14 09:00 | 14 | [345] Christian Langmo v Mate Valkusz [279] | 2-6,2-6 | |
| Challenger de Francavilla | 05/07 13:20 | 14 | Christian Langmo v Alex Barrena | 4-6,4-6 |