Stadium: Court 2 N Round: 25 Ground: Hardcourt outdoor
| ITF M15 Edwardsville | 2021/07/24 13:50 | Christian Langmo v Strong Kirchheimer | 4-6,4-6 |
| ITF M15 Edwardsville | 2021/07/23 14:00 | Paul Jubb v Christian Langmo | 3-6,2-6 |
| ITF M15 Edwardsville | 2021/07/22 14:20 | Kento Takeuchi v Christian Langmo | 5-7,1-6 |
| ITF M15 Edwardsville | 2021/07/21 19:25 | Kyle Seelig v Christian Langmo | 3-6,3-6 |
| ITF M15 Weston | 2021/07/03 17:15 | Stefan Kozlov v Christian Langmo | 6-2,7-5 |
| ITF M15 Weston | 2021/07/02 20:50 | Christian Langmo v Roberto Quiroz | 6-3,3-6,12-10 |
| ITF M15 Weston | 2021/07/01 13:00 | Benjamin Sigouin v Christian Langmo | 6-4,3-6,0-6 |
| ITF M15 Champaign | 2021/06/25 18:50 | Jason Kubler v Christian Langmo | 6-4,6-1 |
| ITF M15 Monastir | 2021/05/06 10:05 | Mohamed Aziz Dougaz v Karlis Ozolins | 6-4,6-3 |
| ITF M15 Monastir | 2021/05/04 10:30 | Jabari Stafford v Karlis Ozolins | 1-6,1-6 |
| ITF M15 Monastir | 2021/04/27 08:30 | Karlis Ozolins v Oscar Jose Gutierrez | 4-6,2-6 |
| ITF M15 Monastir | 2021/04/20 09:00 | Karlis Ozolins v Viktor Jovic | 7-5,4-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/03/17 07:30 | Karlis Ozolins v Illya Beloborodko | 2-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/03/10 10:55 | Karlis Ozolins v Jacopo Berrettini | 1-6,4-6 |
| ITF M15 St Petersburg | 2021/02/09 11:15 | Karlis Ozolins v Konstantin Kravchuk | 4-6,3-6 |
| ITF M15 St Petersburg | 2021/02/04 07:00 | Alexey Zakharov v Karlis Ozolins | 4-6,6-2,7-6 |