Stadium: Court 13 Round: 14 Ground: Hardcourt outdoor
| Challenger Biella | 2021/05/17 12:00 | Borna Gojo v Zhizhen Zhang | 3-6,6-4,2-6 |
| Challenger Zagreb | 2021/05/12 12:20 | Thiago Seyboth Wild v Borna Gojo | 7-5,6-4 |
| Challenger Zagreb | 2021/05/11 09:45 | Ernests Gulbis v Borna Gojo | 6-7,6-7 |
| Challenger Rome | 2021/04/20 10:20 | Borna Gojo v Roberto Marcora | 2-6,3-6 |
| Challenger Nur-Sultan | 2021/02/25 05:00 | Borna Gojo v Henri Laaksonen | 6-1,5-7,2-6 |
| Challenger Nur-Sultan | 2021/02/23 04:00 | Ryan Peniston v Borna Gojo | 3-6,6-1,4-6 |
| ATP Murray River Open | 2021/02/02 03:55 | Borna Gojo v Alexei Popyrin | 7-6,6-7,6-7 |
| Australian Open | 2021/01/13 07:30 | Henri Laaksonen v Borna Gojo | 6-7,6-4,7-6 |
| Challenger Ostrava | 2021/04/27 11:30 | Robin Haase v Alejandro Tabilo | 2-6,6-4,4-6 |
| Challenger Split | 2021/04/08 09:00 | Mirza Basic v Robin Haase | 7-6,6-3 |
| Challenger Split | 2021/04/06 10:25 | Robin Haase v Marc Polmans | 6-3,4-6,7-6 |
| Challenger Biella | 2021/03/13 13:30 | Robin Haase v Andreas Seppi | 1-6,5-7 |
| Challenger Biella | 2021/03/12 11:20 | Robin Haase v Brayden Schnur | 6-3,6-4 |
| Challenger Biella | 2021/03/10 15:20 | Matthias Bachinger v Robin Haase | 2-6,4-6 |
| Challenger Biella | 2021/03/08 12:50 | Daniel Masur v Robin Haase | 7-6,3-6,2-6 |
| ATP Rotterdam | 2021/03/01 18:30 | Robin Haase v Andy Murray | 6-2,6-7,3-6 |