Stadium: North Court 2 Round: 54 Ground: Hardcourt outdoor
| ITF - M15 Sunrise | 2019/04/11 14:00 | Sebastian Korda v Knight, Alexander | 3-6,6-1,6-3 |
| ITF - M15 Sunrise | 2019/04/10 18:45 | Knight, Alexander v Ore, I. A. | 6-3,5-7,7-5 |
| ITF - M15 Sunrise | 2019/04/09 14:00 | Rowland Phillips v Knight, Alexander | 1-6,6-4,9-11 |
| ITF - M15 Sunrise | 2019/04/08 15:00 | Knight, Alexander v Gabriel Donev | 6-4,6-3 |
| ITF USA F28 | 2018/10/13 17:30 | Knight, Alexander v Arrambide Herrera, Guillermo Alejandro | 6-3,6-2 |
| Canada F7, Singles | 2018/09/11 18:35 | Knight, Alexander v Niki, Takuto | 4-6,6-7 |
| Canada F7, Singles | 2018/09/09 13:30 | Knight, Alexander v Nicaise Muamba | 6-2,6-1 |
| Canada F7, Singles | 2018/09/08 14:00 | Knight, Alexander v Johnson, Kyle | 6-1,6-2 |
| ITF - M15 Kalmar | 2019/05/13 13:15 | Ruzgas, Marius v Zapata, Sebastian | 6-1,6-1 |
| Karlskrona, Singles Qualifying M-ITF-SWE-01A | 2019/05/06 09:05 | Arvid Nordquist v Zapata, Sebastian | 6-0,6-1 |
| ITF - M25 Bakersfield | 2019/03/11 17:00 | Ryan Peniston v Zapata, Sebastian | 6-2,6-0 |
| ITF USA F31 | 2018/11/11 17:00 | Zapata, Sebastian v Bernhard, Taine | 4-6,1-6 |
| ITF USA F30 | 2018/11/02 15:30 | Zapata, Sebastian v Kaplja, Aljaz Jakob | 1-6,7-5,2-6 |
| ITF Turkey F29 | 2018/09/22 07:00 | Zapata, Sebastian v Ivan Zaytsev | 2-6,3-6 |
| ITF Canada F6 | 2018/09/01 15:00 | Zapata, Sebastian v Drew Van Orderlain | 2-6,0-6 |
| ITF USA F23 Qual | 2018/08/11 15:00 | Alex Hernandez v Zapata, Sebastian | 6-1,6-0 |