Ruben (ATP-225) was not able to reach the final of the challenger tournament of Nur-Sultan (Kazakhstan, CH 80). He lost a close match in the semis.
Ruben had to face Illya Marchenko (ATP-378) in the battle for a ticket for the final. The Belgian easily won the first set 6-1, but Marchenko came alongside with a 6-7 (5) tiebreak. In an exciting third set, the Ukrainian took the lead with 4-6. The match lasted 2 hours and 13 minutes.