Stadion: Court 6 Round: 27 Ground: Hardcourt outdoor
| German Premier League | 2020/08/11 10:50 | Robert Strombachs v Yanki Erel | 1-6,2-6 |
| ITF - M15 - Monastir | 2021/06/03 08:30 | Robert Strombachs v Youcef Rihane | 6-4,7-5 |
| ITF - M15 - Monastir | 2021/06/01 12:35 | Robert Strombachs v Gustavo Heide | 6-0,6-4 |
| ITF - M15 - Monastir | 2021/05/19 11:20 | Khumoyun Sultanov v Robert Strombachs | 6-4,6-3 |
| ITF - M15 - Monastir | 2021/05/10 12:30 | Robert Strombachs v Uisung Park | 3-6,6-7 |
| ITF - M15 - Monastir | 2021/05/10 08:00 | Robert Strombachs v Romain Faucon | 7-5,6-3 |
| ITF - M15 - Monastir | 2021/05/09 08:00 | Robert Strombachs v Lucio Carnevalle | 6-4,6-0 |
| ITF - M15 - Monastir | 2021/05/04 10:30 | Robert Strombachs v Yusuke Takahashi | 3-6,6-3,1-6 |
| ITF - M15 - Monastir | 2021/04/13 08:30 | Sho Shimabukuro v Robert Strombachs | 6-3,6-2 |
| ITF - M15 - Monastir | 2021/06/03 10:45 | Lukas Neumayer v Yanki Erel | 6-0,4-6,1-6 |
| ITF - M15 - Monastir | 2021/06/01 09:00 | Terence Atmane v Yanki Erel | 3-6,2-6 |
| ITF - M15 - Tbilisi | 2021/05/22 06:00 | Alessandro Bega v Yanki Erel | 6-4,6-2 |
| ITF - M15 - Tbilisi | 2021/05/21 06:00 | Zane Khan v Yanki Erel | 2-6,4-6 |
| ITF - M15 - Tbilisi | 2021/05/20 07:55 | Zura Tkemaladze v Yanki Erel | 4-6,4-6 |
| ITF - M15 - Tbilisi | 2021/05/18 08:00 | Alafia Ayeni v Yanki Erel | 2-6,3-6 |
| ITF - M15 - Antalya | 2021/05/06 09:00 | Yanki Erel v Sandro Kopp | 4-6,5-7 |
| ITF - M15 - Antalya | 2021/05/05 08:25 | Jeroen Vanneste v Yanki Erel | 7-6,5-7,5-7 |