Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Pittsburgh | 2023/07/26 13:50 | Patrick Maloney v Jacob Brumm | 6-1,6-4 |
| ITF M25 - Champaign | 2023/07/20 14:50 | Yuki Mochizuki v Jacob Brumm | 6-3,6-2 |
| ITF M25 - Champaign | 2023/07/19 15:00 | Peter Bertran v Jacob Brumm | 2-6,6-2,3-6 |
| ITF M15 - Lakewood | 2023/07/13 19:00 | Andre Ilagan v Jacob Brumm | 2-6,6-1,6-4 |
| ITF M15 - Lakewood | 2023/07/12 22:05 | Ishaan Ravichander v Jacob Brumm | 2-6,1-6 |
| ITF M15 - San Diego | 2023/06/11 21:30 | Jack Anthrop v Jacob Brumm | 6-7,3-6 |
| ITF M15 - San Diego | 2023/06/10 22:15 | Jonas Eriksson Ziverts v Jacob Brumm | 6-3,6-7,3-6 |
| ITF M15 - San Diego | 2023/06/09 17:30 | Trevor Svajda v Jacob Brumm | 6-3,5-7,0-6 |
| ITF M15 - Pittsburgh | 2023/07/27 15:00 | Alexander Kotzen v Bruno Kuzuhara | 6-4,6-7,2-6 |
| ITF M15 - Pittsburgh | 2023/07/26 17:45 | Alexander Kotzen v Fabien Salle | 6-4,6-1 |
| UTR Pro - California | 2023/07/23 17:00 | Alexander Kotzen v Constantinos Djakouris | 6-3,7-5 |
| UTR Pro - California | 2023/07/22 18:00 | Alexander Kotzen v Karl Lee | 6-2,4-6,6-2 |
| UTR Pro - California | 2023/07/21 23:00 | Alexander Kotzen v Tyler Davis | 6-2,6-3 |
| UTR Pro - California | 2023/07/20 20:30 | Alexander Kotzen v Emmett Potter | 4-6,6-4,6-3 |
| UTR Pro - California | 2023/07/19 22:54 | Lawee Sherif v Alexander Kotzen | 6-3,0-6,0-2 |
| UTR Pro - California | 2023/07/19 00:00 | Jeffrey Fradkin v Alexander Kotzen | 6-7,2-5 |