Stadium: Court 2 Round: 45 Ground: Hardcourt outdoor
| ITF Qatar F4 | 2018/12/02 15:05 | Guy Den Heijer v Yanik Kaelin | 6-2,6-3 |
| ITF M25 Oberentfelden | 2019/02/04 08:30 | Jack Findel-Hawkins v Yanik Kaelin | 6-1,6-2 |
| ITF Qatar F6 | 2018/12/16 12:00 | Lorenzo Frigerio v Yanik Kaelin | 6-4,6-2 |
| ITF Qatar F6 | 2018/12/15 08:00 | Shahbaaz Khan v Yanik Kaelin | 4-6,1-6 |
| ITF Qatar F5 | 2018/12/09 15:15 | Mirko Cutuli v Yanik Kaelin | 6-1,6-7,6-3 |
| ITF Qatar F5 | 2018/12/08 11:05 | Karen Khachatryan v Yanik Kaelin | 3-6,0-6 |
| ITF Qatar F4 | 2018/12/02 15:05 | Guy Den Heijer v Yanik Kaelin | 6-2,6-3 |
| ITF Egypt F28 | 2018/11/18 10:00 | Andrea Borroni v Yanik Kaelin | 4-6,6-3,6-4 |
| ITF Egypt F28 | 2018/11/17 08:00 | Wellington Bastos v Yanik Kaelin | 0-6,0-6 |
| ITF M15 Monastir | 2019/02/13 08:30 | Dan Added v Guy Den Heijer | 7-6,6-4 |
| ITF M15 Monastir | 2019/02/11 12:00 | Hugo Pontico v Guy Den Heijer | 4-6,6-4,7-10 |
| ITF M15 Monastir | 2019/02/11 08:00 | Petr Arkhipov v Guy Den Heijer | 5-7,2-6 |
| ITF M15 Monastir | 2019/02/06 12:20 | Diego Hidalgo v Guy Den Heijer | 6-2,6-3 |
| ITF Qatar F6 | 2018/12/18 08:20 | Alexandar Lazarov v Guy Den Heijer | 7-6,7-6 |
| ITF Qatar F6 | 2018/12/17 10:00 | Guy Den Heijer v Tom Pisane | 6-3,6-4 |
| ITF Qatar F6 | 2018/12/16 15:10 | Guy Den Heijer v Yuri Khachatryan | 7-5,6-0 |
| ITF Qatar F5 | 2018/12/11 17:40 | Guy Den Heijer v Tak Khunn Wang | 3-6,3-6 |