Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF - M15 Sharm El Sheikh | 2019/03/25 12:00 | Guttau, Niklas v Petrenko, Anatoliy | 7-5,3-6,6-10 |
| ITF - M15 Sharm El Sheikh | 2019/03/25 10:00 | Simon Beaupain v Guttau, Niklas | 6-7,4-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/20 08:00 | Vidal Azorin, Jose Fco v Guttau, Niklas | 6-0,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/03/11 11:00 | Guttau, Niklas v Stefan Palosi | 3-6,0-6 |
| ITF - M15 Sharm El Sheikh | 2019/03/11 08:00 | Kolisnyk, Olexiy v Guttau, Niklas | 7-6,2-6,3-10 |
| ITF Germany F16 | 2018/10/21 08:00 | Sizya Ernest Kivanda v Guttau, Niklas | 7-5,6-4 |
| ITF Turkey F32 | 2018/10/17 07:00 | Hady Habib v Guttau, Niklas | 7-5,4-6,6-3 |
| ITF Turkey F32 | 2018/10/15 07:00 | Peters, Flemming v Guttau, Niklas | 1-6,3-6 |
| ITF - M15 Sharm El Sheikh | 2019/04/03 14:10 | Staeheli, Luca v S D Prajwal Dev | 2-6,6-3,6-0 |
| ITF - M15 Sharm El Sheikh | 2019/04/02 08:00 | Staeheli, Luca v Yannik Steinegger | 7-5,6-4 |
| ITF - M15 Sharm El Sheikh | 2019/03/25 11:00 | Mattia Bellucci v Staeheli, Luca | 6-4,6-2 |
| ITF - M15 Sharm El Sheikh | 2019/03/25 08:00 | Daniel De Jonge v Staeheli, Luca | 3-6,6-7 |
| ITF - M15 Monastir | 2019/02/11 08:00 | Bondarevskiy, Yan v Staeheli, Luca | 6-3,7-6 |
| ITF M25 Oberentfelden | 2019/02/04 08:30 | Jonas Schaer v Staeheli, Luca | 6-7,6-3,10-8 |
| ITF - M15 Veigy-Foncenex | 2019/01/21 17:35 | Staeheli, Luca v Ugo Blanchet | 3-6,4-6 |
| ITF - M15 Veigy-Foncenex | 2019/01/21 12:05 | Staeheli, Luca v Bencic, Brian | 6-3,7-6 |