Stadium: Court 2 Round: 54 Ground: Hardcourt indoor
| Challenger Vancouver | 2018/08/11 18:20 | Ruan Roelofse v Jacob Grills | 1-6,2-6 |
| Challenger Aptos | 2018/08/04 17:20 | Ruan Roelofse v Alex Rybakov | 3-6,6-7 |
| Challenger Lexington Qual | 2018/07/30 16:00 | Alex Rybakov v Ruan Roelofse | 7-5,7-6 |
| Challenger Lexington Qual | 2018/07/29 16:45 | Austin Hussey v Ruan Roelofse | 1-6,1-6 |
| Challenger Lexington Qual | 2018/07/28 18:55 | Ruan Roelofse v Kento Takeuchi | 6-4,6-4 |
| Challenger Binghamton Qual | 2018/07/21 17:20 | Ruan Roelofse v Jared Hiltzik | 5-7,4-6 |
| Challenger Puerto Vallarta Qual | 2018/04/28 19:25 | Jose Olivares v Ruan Roelofse | 6-3,7-5 |
| Challenger Taipei | 2018/04/10 06:50 | Ti Chen v Ruan Roelofse | 7-6,6-3 |
| ATP Washington Qual | 2018/07/28 15:10 | Danny Thomas v Donald Young | 6-7,6-4,2-6 |
| ITF USA F19B | 2018/07/19 17:00 | Lloyd Glasspool v Danny Thomas | 7-6,7-6 |
| ITF USA F19B | 2018/07/18 15:00 | Alexander Lebedev v Danny Thomas | 5-7,2-6 |
| Challenger Winnetka | 2018/07/09 17:00 | Danny Thomas v Dayne Kelly | 6-4,3-6,5-7 |
| ITF USA F17 | 2018/06/26 16:45 | Danny Thomas v Marc-Andrea Huesler | 7-5,5-7,6-7 |
| ITF USA F15 | 2018/06/19 14:00 | Danny Thomas v Karue Sell | 6-3,6-7,6-7 |
| ITF USA F13 Qual | 2018/06/09 15:30 | Danny Thomas v Christian Seraphim | 6-7,4-6 |
| Challenger Savannah Qual | 2018/04/29 16:55 | Karue Sell v Danny Thomas | 6-3,6-1 |