Ruben (ATP-148) was not able to reach the second round of the Challenger tournament of Indian Wells (United States, CH 125). He lost in two sets to a Serbian.
Ruben faced the Serb Pedja Krstin (ATP-187) in the first round. The first set went to Krstin 6-3. Also in the second set Ruben could not turn the tide, he went down 6-4. The match lasted 1 hour and 16 minutes.
Ruben (ATP D-317) still plays doubles together with the German Yannick Maden (ATP D-382). In the first round they face the American pair Christopher Eubanks (ATP D-377) and Thai-Son Kwiatkowski (ATP D-361).