Ruben (ATP-128) has reached the quarterfinals at the challenger tournament of Chicago (United States). He beat his Japanese opponent in two sets.
Sixth seed Ruben faced the Japanese Kaichi Uchida (ATP-299) in the second round. The Belgian served strong and one break was enough to seal the first set with 6-3. Ruben had to save one breakpoint in the second set and broke the serve of Uchida once. After 1 hour and 18 minutes, the 6-3 and 6-4 final score was on the scoreboard.
In the quarterfinals, he will face the Uzbek Denis Istomin (ATP-76) or the American Tommy Paul (ATP-370).