Stadium: Clay 7 Round: 62 Ground: Clay
| ITF Canada F6 | 2018/09/01 15:00 | Sebastian Zapata v Drew Van Orderlain | 2-6,0-6 |
| ITF USA F23 Qual | 2018/08/11 15:00 | Alex Hernandez v Sebastian Zapata | 6-1,6-0 |
| ITF USA F20 Qual | 2018/07/21 15:00 | Sebastian Zapata v Eric Morris | 1-6,0-6 |
| ITF USA F7 Qual | 2018/03/11 17:00 | Eric Hadigian v Sebastian Zapata | 6-0,6-0 |
| ITF USA F2 Qual | 2018/01/06 18:00 | Sebastian Zapata v Matthew Tsolakyan | 1-6,1-6 |
| ITF USA F1 Qual | 2017/12/30 18:30 | Sathi Reddy Chirala v Sebastian Zapata | 6-0,1-6,6-3 |
| ITF Dominican Republic F3 | 2017/12/09 14:00 | Sid Donarski v Sebastian Zapata | 6-2,6-1 |
| ITF Dominican Republic F1 | 2017/11/25 15:00 | Ezequiel Cerrini v Sebastian Zapata | 6-1,6-0 |
| ITF Austria F6 | 2018/08/06 08:30 | Ivan Zaytsev v Michael Weindl | 0-6,1-6 |
| ITF Austria F6 | 2018/08/05 10:35 | Keivon Tabrizi v Ivan Zaytsev | 4-6,6-3,5-7 |
| ITF Russia F4 Qual | 2018/07/29 07:00 | Ivan Mikhaylyuk v Ivan Zaytsev | 6-3,6-3 |
| ITF Lithuania F1 | 2018/07/21 13:00 | Ivan Zaytsev v Harrison Lombe | 2-6,2-6 |
| ITF Lithuania F1 | 2018/07/21 07:00 | Ivan Zaytsev v Masi Sarpola | 3-6,7-5,6-3 |