| ITF M25 Poznan | 2024/08/21 14:40 | Alec Beckley v Piotr Siekanowicz | 6-1,6-1 |
| UTR Pro Boca Raton | 2025/01/15 15:00 | Edward Wang v Piotr Siekanowicz | 4-6,6-3,1-6 |
| UTR Pro Boca Raton | 2025/01/14 15:00 | Kalman Boyd v Piotr Siekanowicz | 6-3,6-4 |
| UTR Pro Boca Raton | 2025/01/12 15:00 | Adrien Burdet v Piotr Siekanowicz | 7-5,6-2 |
| ITF M15 Tallahassee | 2024/11/21 14:50 | Piotr Siekanowicz v Tristan McCormick | 4-6,2-6 |
| ITF M15 Tallahassee | 2024/11/20 14:00 | Azariah Rusher v Piotr Siekanowicz | 2-6,6-7 |
| ITF M15 Ann Arbor | 2024/10/02 19:10 | Dan Martin v Piotr Siekanowicz | 6-2,4-6,6-4 |
| ITF M15 Ann Arbor | 2024/10/01 14:00 | Mitchell Sheldon v Piotr Siekanowicz | 3-6,0-6 |
| ITF M15 Ann Arbor | 2024/09/30 15:00 | Milos Mikovic v Piotr Siekanowicz | 4-6,1-6 |
| ITF M15 Pretoria | 2025/02/27 09:00 | Alec Beckley v Matyas Fuele | 6-4,2-6,3-6 |
| ITF M15 Pretoria | 2025/02/26 14:06 | Alec Beckley v Attila Dominik Boros | 7-5,6-2 |
| Challenger Brazzaville | 2025/02/17 16:30 | Alec Beckley v Franco Agamenone | 4-6,6-4,4-6 |
| ITF M15 Stellenbosch | 2024/12/14 08:00 | Alec Beckley v Philip Henning | 0-6,1-6 |
| ITF M15 Stellenbosch | 2024/12/13 08:00 | Hugo Pierre v Alec Beckley | 6-7,4-6 |
| ITF M15 Stellenbosch | 2024/12/12 10:50 | Lorenzo Lorusso v Alec Beckley | 2-6,5-7 |
| ITF M15 Stellenbosch | 2024/12/10 09:30 | Thando Longwe-Smit v Alec Beckley | 5-7,1-6 |
| ITF M15 Stellenbosch | 2024/12/06 08:00 | Niels Visker v Alec Beckley | 7-6,7-5 |