| UTR Pro Tennis Series - Kodaň | 2021/06/16 08:00 | Alejandro Mendoza v Daniel De Jonge | 1-6,2-6 |
| UTR Pro Tennis Series - Kodaň | 2021/06/15 08:00 | Benjamin Hannestad v Daniel De Jonge | 4-6,5-7 |
| ITF M15 Sarreguemines | 2020/10/28 11:35 | Daniel De Jonge v Arthur Cazaux | 5-7,1-6 |
| ITF M15 Sarreguemines | 2020/10/26 11:45 | Hendrik Jebens v Daniel De Jonge | 6-7,3-6 |
| ITF M15 Sarreguemines | 2020/10/25 12:20 | Axel Garcian v Daniel De Jonge | 6-4,4-6,5-10 |
| ITF M15 Forbach | 2020/09/28 17:20 | Hugo Schott v Daniel De Jonge | 6-1,6-2 |
| ITF M15 Forbach | 2020/09/28 13:00 | Charles Minc v Daniel De Jonge | 3-6,1-6 |
| ITF M15 Alkmaar | 2020/08/25 08:55 | Juan Pablo Paz v Daniel De Jonge | 6-0,6-2 |
| ITF Turkey F3 | 2018/01/20 09:00 | Nikolaj Katic v Roberts Grinvalds | 0-6,4-6 |
| ITF Turkey F1 | 2018/01/07 08:30 | Zizou Bergs v Nikolaj Katic | 6-2,6-1 |
| ITF Turkey F1 | 2018/01/06 09:00 | Philipp Sikorski v Nikolaj Katic | 2-6,6-1,2-6 |
| ITF Turkey F47 Qual | 2017/12/09 06:45 | Gregorio Cordonnier v Nikolaj Katic | 6-7,6-4,6-2 |
| ITF Turkey F46 Qual | 2017/12/02 06:45 | Maurizio Speziali v Nikolaj Katic | 6-1,4-6,6-1 |
| ITF Turkey F45 Qual | 2017/11/26 06:30 | Vladislav Melnic v Nikolaj Katic | 6-4,6-2 |
| ITF Netherlands F4 | 2016/07/02 10:30 | Nikolaj Katic v Gijs Brouwer | 1-6,3-6 |
| ITF Netherlands F4 | 2016/07/02 08:00 | Nikolaj Katic v Cheraag Bajwa | 3-6,6-3,6-1 |