Stadium: Round: 62 Ground: Hardcourt outdoor
| ITF USA F22 Qual | 2018/08/04 16:00 | Rico Gore v Louis Siegler | 0-6,0-6 |
| Challenger Bastad Qual | 2018/07/07 08:15 | Louis Siegler v Ben Patael | 0-6,1-6 |
| ITF USA F12 | 2018/04/22 18:30 | Richard Torres v Louis Siegler | 7-5,6-0 |
| ITF USA F11 | 2018/04/14 16:30 | Louis Siegler v Zandrix Acob | 4-6,2-6 |
| ITF USA F6 | 2018/01/29 16:00 | Louis Siegler v Jared Pratt | 0-6,4-6 |
| ITF USA F6 | 2018/01/28 13:30 | Louis Siegler v Joseph W. Van Meter | 6-2,6-1 |
| ITF USA F6 | 2018/01/27 14:00 | Tyler Mercier v Louis Siegler | 4-6,6-2,3-6 |
| ITF USA F6 | 2018/01/26 13:30 | Louis Siegler v Tomas Krcma | 6-0,6-1 |
| ITF USA F22 Qual | 2018/08/04 16:00 | Alex Blumenberg v Alberto Lim | 7-6,6-4 |
| ITF USA F21 Qual | 2018/07/30 15:00 | Jonathan Chang v Alex Blumenberg | 6-2,6-1 |
| ITF USA F21 Qual | 2018/07/28 17:00 | Kaptan Kaster v Alex Blumenberg | 2-6,2-6 |
| ITF USA F20 Qual | 2018/07/22 16:30 | Alfredo Perez v Alex Blumenberg | 7-6,6-4 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Bradley Holt v Alex Blumenberg | 6-7,2-6 |
| ITF USA F19B Qual | 2018/07/15 15:00 | Alexander Lebedev v Alex Blumenberg | 6-4,5-7,6-1 |
| ITF Brazil F2 | 2018/04/30 15:00 | Tomas Martin Etcheverry v Alex Blumenberg | 6-4,6-2 |
| ITF Brazil F2 | 2018/04/29 15:00 | Alex Blumenberg v Igor Sao Thiago | 6-4,5-7,6-4 |