Stadium: Court 2 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2021/10/17 18:00 | Felipe Santamaria v Fernando A. Z. Cantillana | 6-4,6-2 |
| ITF M15 Cancun | 2021/10/11 14:00 | Nicholas Bybel v Fernando A. Z. Cantillana | 6-2,6-0 |
| ITF M15 Cancun | 2021/10/03 15:30 | Seita Watanabe v Fernando A. Z. Cantillana | 6-2,6-0 |
| ITF M15 Antalya | 2021/06/14 09:20 | Fernando A. Z. Cantillana v Ignacio Carou | 4-6,3-6 |
| ITF M15 Antalya | 2021/06/13 07:30 | Adil Karimov v Fernando A. Z. Cantillana | 2-6,3-6 |
| ITF M15 Antalya | 2021/06/07 07:00 | Fernando A. Z. Cantillana v Vladislav Ivanov | 1-6,0-6 |
| ITF M15 Antalya | 2021/06/06 07:30 | Gokberk Saritas v Fernando A. Z. Cantillana | 4-6,2-6 |
| ITF M15 Antalya | 2021/05/31 09:30 | Fernando A. Z. Cantillana v Francisco Llanes | 0-6,1-6 |
| ITF M15 Lodz | 2021/08/16 08:00 | Piotr Galus v Yann Wojcik | 2-6,2-6 |
| ITF M15 Lodz | 2021/08/15 08:00 | Piotr Galus v Leon Hoeveler | 6-3,6-2 |
| ITF M15 Gdynia | 2021/08/09 08:00 | Piotr Galus v Alexis Canter | 2-6,1-6 |
| ITF M15 Gdynia | 2021/08/08 08:00 | Mikolaj Borkowski v Piotr Galus | 6-7,1-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 14:10 | Robert Rumler v Piotr Galus | 7-5,7-6 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 11:00 | Lars Aregger v Piotr Galus | 3-6,1-6 |
| Polish National Tour | 2021/07/12 11:30 | Maciej Rajski v Piotr Galus | 6-1,6-2 |
| ITF M15 Monastir | 2020/10/25 09:00 | Taiyo Yamanaka v Piotr Galus | 6-3,6-2 |