At the challenger tournament of Eckental (Germany, CH 80), Ruben (ATP D-201) is in excellent shape in the doubles. Together with Daniel Masur (ATP D-221) he reached the semifinal.
Ruben and Masur were too strong for Hans Podlipnik-Castillo (ATP D-126) and Tristan-Samuel Weissborn (ATP D-103) in the first round with 6-4 and 7-6 (8). In the quarterfinals, the Belgo-German pair beat fourth seeds Jonathan Erlich (ATP D-84) and Denys Molchanov (ATP D-78) with 6-2 and 6-4.
Top seeds Sander Arends (ATP D-75) and Roman Jebavy (ATP D-65) will be their opponents in the semifinal.