Italy: Caltanissetta - Singles - Main
France: Saint Brieuc - Singles - Main
Hungary: Budapest - Singles - Main
Morocco: Casablanca - Singles - Main
Thailand: Bangkok 4 - Singles - Main
Selecionar tipo de torneio
Sieber Marc (Germany)
- Mostrar:
| Germany: Oberhaching - Singles - Main | |||||||
|---|---|---|---|---|---|---|---|
| 1/8-finals | Ferrari F. | Sieber M. | 2:1 (2:6, 6:4, 6:3) | detalhes | 04.10.2018 | ||
| 1/16-finals | Wiskandt M. | Sieber M. | 0:2 (2:6, 0:6) | detalhes | 02.10.2018 | ||
| Germany: Meerbusch - Singles - Main | |||||||
| 1/16-finals | Sieber M. | Tatlot J. S. | 1:2 (65:7, 6:4, 4:6) | detalhes | 14.08.2018 | ||
 Czech Republic: Prague - Singles - Main | |||||||
| 1/16-finals | Nedovyesov A. | Sieber M. | 2:0 (6:0, 6:4) | detalhes | 24.07.2018 | ||
| Germany: Kassel - Singles - Main | |||||||
| 1/8-finals | Sieber M. | Heyman C. | 0:2 (1:6, 5:7) | detalhes | 19.07.2018 | ||
- Mostrar:
| Germany: Ismaning - Doubles - Main | |||||||
|---|---|---|---|---|---|---|---|
| Semi-finals | Jahn J./Sieber M. | Junaid R./Pel D. | 0:2 (65:7, 2:6) | detalhes | 20.10.2018 | ||
| Quarter-finals | Jahn J./Sieber M. | Brown D./Krawietz K. | WO. | detalhes | 17.10.2018 | ||
| 1/8-finals | Masur D./Seraphim C. | Jahn J./Sieber M. | 1:2 (7:64, 66:7, 5:10) | detalhes | 15.10.2018 | ||
| Czech Republic: Prague - Doubles - Main | |||||||
| 1/8-finals | Sieber M./Torebko P. | Giustino L./Oliveira G. | 0:2 (3:6, 2:6) | detalhes | 25.07.2018 | ||
 Turkey: Izmir - Doubles - Main | |||||||
| Quarter-finals | Kern R./Sieber M. | Margaroli L./Miedler L. | 1:2 (7:5, 4:6, 7:10) | detalhes | 20.09.2017 | ||