| ITF M25 Weston | 2021/06/29 21:00 | Cleeve Harper v Lukas Greif | 7-5,5-7,10-6 |
| ITF M25 Weston | 2021/06/29 21:00 | Cleeve Harper v Lukas Greif | 7-5,5-7,10-6 |
| ITF M25 Houston | 2019/09/21 01:00 | Lukas Greif v Austin Rapp | 3-6,3-6 |
| ITF M25 Houston | 2019/09/20 00:00 | Harrison Adams v Lukas Greif | 3-6,3-6 |
| ITF M25 Houston | 2019/09/19 00:00 | Lukas Greif v Edoardo Graziani | 6-4,7-5 |
| ITF M25 Houston | 2019/09/16 14:00 | Eduardo N Irizarry v Lukas Greif | 3-6,2-6 |
| ITF M25 Houston | 2019/09/15 14:00 | Lukas Greif v Abraham Asaba | 5-7,6-4,10-3 |
| ITF USA F12 | 2018/04/21 14:30 | Lukas Greif v Alex Hernandez | 1-6,3-6 |
| ITF USA F12 | 2018/04/20 18:00 | Lukas Greif v Conner McMann | 6-3,6-0 |
| ITF M15 Weston | 2021/07/02 15:10 | Cleeve Harper v Nicolas Mejia | 3-6,4-6 |
| ITF M25 Weston | 2021/06/29 22:45 | Michael Zheng v Cleeve Harper | 6-3,6-3 |
| ITF M25 Weston | 2021/06/29 21:00 | Cleeve Harper v Lukas Greif | 7-5,5-7,10-6 |
| ITF M15 Champaign | 2021/06/21 15:00 | Kyle Seelig v Cleeve Harper | 6-2,6-1 |
| UTR Pro Tennis Series Florida | 2021/06/11 16:00 | Cleeve Harper v Ivan Yatsuk | 7-5,6-7,4-6 |
| UTR Pro Tennis Series Florida | 2021/06/09 14:30 | Cleeve Harper v Andres Martin | 3-6,6-3,2-6 |
| UTR Pro Tennis Series Florida | 2021/06/08 14:30 | Cleeve Harper v Thomas Brown | 6-3,5-1 |
| UTR Pro Tennis Series Florida | 2021/06/07 13:00 | Cooper Williams v Cleeve Harper | 2-6,4-5 |