| ITF - M25 - Hammamet | 04/16 12:40 | 25 | Evan Furness v Johan Nikles | 6-2,7-5 | |
| ITF - M25 - Hammamet | 04/11 08:30 | 26 | Johan Nikles v Jerome Kym | 7-6,4-6,1-6 | |
| ITF - M25 - Hammamet | 04/10 10:10 | 25 | Seita Watanabe v Johan Nikles | 6-7,4-6 | |
| ITF - M25 - Hammamet | 04/08 13:15 | 62 | Johan Nikles v Matteo Fondriest | 6-3,6-3 | |
| Challenger - Barletta | 03/31 10:20 | 14 | Matthew Dellavedova v Johan Nikles | 6-1,7-5 | |
| Challenger - Zadar | 03/18 09:00 | 19 | Johan Nikles v Arthur Gea | 1-6,4-6 | |
| Challenger - Zadar | 03/17 10:45 | 14 | Matthew Dellavedova v Johan Nikles | Retired | |
| ITF - M15 - Rovinj | 03/12 12:05 | 25 | Johan Nikles v Stefan Popovic | 6-3,3-6,2-6 | |
| Challenger - Lugano | 03/05 17:15 | 25 | Cem Ilkel v Johan Nikles | 6-0,6-3 | |
| ITF - M25 - Hammamet | 02/21 13:30 | 25 | Johan Nikles v Gabriele Maria Noce | 6-4,1-6,3-6 | |
| ITF - M25 - Hammamet | 02/20 09:15 | 62 | Johan Nikles v Ivan Kazakov | 7-5,6-4 | |
| ITF - M25 - Hammamet | 02/19 11:00 | 62 | Johan Nikles v Giammarco Gandolfi | 6-0,3-6,10-3 |
Johan Nikles (* 23. März 1997 in Genf) ist ein Schweizer Tennisspieler.