| Challenger de Todi | 07/03 13:35 | 14 | Andrea Militi Ribaldi v Christian Langmo | 6-7,4-6 | |
| UTR Pro Tennis Series Florida | 06/16 14:30 | - | Christian Langmo v Giulio Perego | 4-6,6-4,3-6 | |
| UTR Pro Tennis Series Florida | 06/14 20:24 | - | Christian Langmo v Dylan Chang | 6-3,6-3 | |
| UTR Pro Tennis Series Florida | 06/13 13:00 | - | Christian Langmo v Raul Garcia | 6-1,6-3 | |
| UTR Pro Tennis Series Florida | 06/12 14:30 | - | Maks Silagy v Christian Langmo | 6-0,2-6,0-6 | |
| ITF M25 Santo Domingo | 06/08 20:50 | 25 | Cesar Ramirez v Christian Langmo | 2-6,7-6,6-1 | |
| Challenger de Little Rock | 05/29 18:05 | 14 | [445] Christian Langmo v Yunseong Chung [392] | Retired | |
| ITF M25 Monastir | 05/14 08:30 | 28 | Christian Langmo v Li Tu | 3-6,6-7 | |
| ITF M25 Monastir | 05/13 08:30 | 27 | [270] Raul Brancaccio v Christian Langmo [468] | 5-7,4-6 | |
| ITF M25 Monastir | 05/12 10:35 | 26 | Fajing Sun v Christian Langmo | 2-6,3-6 | |
| ITF M25 Monastir | 05/10 09:30 | 25 | Daniil Glinka v Christian Langmo | 3-6,4-6 | |
| Challenger de Tallahassee | 04/19 18:35 | 25 | [471] Christian Langmo v Aleksandar Kovacevic [382] | 2-6,6-7 | |
| Challenger de Tallahassee | 04/18 16:30 | 19 | [373] Yunseong Chung v Christian Langmo [471] | 5-7,5-7 | |
| Challenger de Tallahassee | 04/17 19:35 | 14 | [470] Christian Langmo v Zachary Svajda [379] | 7-5,6-0 | |
| Challenger de Sarasota | 04/10 15:35 | 26 | [260] Rinky Hijikata v Christian Langmo [471] | 7-6,6-3 | |
| Challenger de Salinas | 04/04 16:50 | 19 | Christian Langmo v Blu Baker | Walkover | |
| ITF M25 Calabasas | 03/24 18:30 | 26 | [458] Christian Langmo v Rinky Hijikata [308] | 2-6,4-6 | |
| ITF M25 Calabasas | 03/23 20:45 | 25 | Eric Hadigian v Christian Langmo | 5-7,6-7 | |
| ITF M25 Bakersfield | 03/16 20:30 | 25 | Christian Langmo v Bruno Kuzuhara | 6-4,6-7,4-6 | |
| ITF M25 Santo Domingo | 03/01 19:10 | 25 | Jaimee Floyd Angele v Christian Langmo | 6-4,6-4 | |
| ITF M25 Santo Domingo | 02/25 14:25 | 27 | [473] Christian Langmo v Roberto Cid Subervi [383] | 5-7,6-4,4-6 | |
| ITF M25 Santo Domingo | 02/24 13:25 | 26 | [241] Geoffrey Blancaneaux v Christian Langmo [473] | 7-5,3-6,5-7 | |
| ITF M25 Santo Domingo | 02/22 20:00 | 25 | [473] Christian Langmo v Oleg Prihodko [383] | 7-6,6-4 | |
| ITF M25 Cancún | 02/17 15:00 | 26 | [374] Nick Chappell v Christian Langmo [475] | Walkover | |
| ITF M25 Cancún | 02/16 15:00 | 25 | Jesse Flores v Christian Langmo | 4-6,6-7 | |
| ITF M25 Cancún | 02/09 16:55 | 25 | [477] Christian Langmo v JC Aragone [430] | 6-4,6-7,4-6 | |
| ITF M25 Weston | 01/26 14:00 | 25 | Blu Baker v Christian Langmo | 4-6,6-3,6-2 | |
| ITF M15 Cancun | 12/15 14:30 | 25 | Christian Langmo v Alexander Bernard | Cancelled | |
| ITF M15 Cancun | 12/12 14:50 | 29 | [495] Christian Langmo v Liam Draxl [404] | 7-6,6-7,6-7 | |
| ITF M15 Cancun | 12/11 14:00 | 28 | Christian Langmo v Ezekiel Clark | 6-4,7-6 |