Stadium: Court 2 Round: 62 Ground: Clay
| ITF Greece F3 | 2017/03/18 09:30 | Gabb, Richard v Regus, Ralph | 6-3,6-2 |
| ITF Switzerland F1 Qual | 2017/02/06 09:00 | 케케즈, 두제 v Regus, Ralph | 7-5,2-6,7-6 |
| ITF Switzerland F1 Qual | 2017/02/05 11:30 | Regus, Ralph v Giacomelli, Luca | 6-2,6-7,7-5 |
| ITF Switzerland F1 Qual | 2017/02/04 11:30 | Regus, Ralph v Gatev, Maximilian | 6-4,6-0 |
| ITF Spain F1 | 2017/01/15 08:30 | Guell Bartrina, Eduard v Regus, Ralph | 6-1,3-6,6-4 |
| ITF Greece F10 Qual | 2016/11/12 07:00 | 와키타, 순스케 v Regus, Ralph | 6-4,6-4 |
| ITF Greece F9 Qual | 2016/11/07 08:00 | Bogaert, Dennis v Regus, Ralph | 6-4,2-6,6-3 |
| ITF Germany F15 | 2016/10/15 08:00 | Ramskogler, Gregor v Regus, Ralph | 6-3,6-4 |
| ITF Morocco F1 | 2017/07/15 14:00 | Buehler, Sebastian v Lavanchy, Nathan | 4-6,6-1,6-3 |
| ITF Austria F1 | 2017/07/01 07:00 | Buehler, Sebastian v Hruncak, Dominik | 4-6,1-6 |
| ITF Netherlands F2 Qual | 2017/06/25 09:00 | 칼, 시몬 v Buehler, Sebastian | 6-0,6-0 |
| ITF Netherlands F2 Qual | 2017/06/24 09:00 | Musset, Simon v Buehler, Sebastian | 6-7,0-6 |
| Czech Republic F2, Singles | 2017/05/20 08:00 | Zawisza, Pawel v Buehler, Sebastian | 6-0,6-1 |
| ITF Czech Republic F1 Qual | 2017/05/13 13:00 | 티코미로브, 마크심 v Buehler, Sebastian | 6-2,6-1 |
| ITF Tunisia F1 | 2017/01/08 08:30 | 크레파트, 바프티스트 v Buehler, Sebastian | 4-6,6-1,6-1 |
| Kuwait F3, Singles Qualifying | 2016/11/12 23:00 | AL Mousa, Hassan v Buehler, Sebastian | 6-4,6-0 |