Stadium: Court 12 Round: 62 Ground: Clay
| ITF Poland F10 Qual | 2017/08/21 09:35 | Volodymyr Uzhylovskyi v Luke Simkiss | 6-2,6-0 |
| ITF Poland F9 Qual | 2017/08/14 09:30 | Bartlomiej Maroszek v Luke Simkiss | 6-4,6-1 |
| ITF Poland F9 Qual | 2017/08/13 10:30 | Luke Simkiss v Adam Mlazga | 3-6,6-1,7-6 |
| ITF Netherlands F1 | 2017/06/20 10:30 | Luke Simkiss v Mick Veldheer | 3-6,0-6 |
| ITF Netherlands F1 Qual | 2017/06/19 08:00 | Zachary Eisinga v Luke Simkiss | 6-1,3-6,1-6 |
| ITF Netherlands F1 Qual | 2017/06/18 08:00 | Tom Clavel v Luke Simkiss | 5-7,3-6 |
| ITF Netherlands F1 Qual | 2017/06/17 13:00 | Gijs Buntsma v Luke Simkiss | 4-6,3-6 |
| ITF Turkey F19 | 2017/05/16 08:30 | Luke Simkiss v Juan Bautista Otegui | 1-6,2-6 |
| ITF M25 Madrid | 2022/09/05 09:00 | Daniel L Salmeron v Stefan Cizelj-Zivkovic | 7-6,6-3 |
| ITF M25 Madrid | 2022/09/04 12:30 | Paul Ender v Stefan Cizelj-Zivkovic | 3-6,3-6 |
| ITF M15 Cairo | 2022/08/28 08:00 | Stefano Papagno v Stefan Cizelj-Zivkovic | 6-2,4-6,12-10 |
| ITF M15 Cairo | 2022/08/22 08:00 | Stefan Cizelj-Zivkovic v Elio Jose Ribeiro Lago | 1-6,5-7 |
| ITF M15 Cairo | 2022/08/21 09:00 | Stefan Cizelj-Zivkovic v Mateo Branc | 7-5,4-6,10-8 |
| ITF M15 Xativa | 2022/07/31 08:00 | Francesco Scarpa v Stefan Cizelj-Zivkovic | 7-5,6-3 |
| ITF M15 Casablanca | 2022/07/03 09:00 | Imran Sibille v Stefan Cizelj-Zivkovic | 7-6,6-4 |
| ITF M15 Cordoba | 2022/06/05 16:00 | Stefan Cizelj-Zivkovic v Juan P Canas Garcia | 1-6,4-6 |