Den Ouden settled in the second round of the tournament in Santa Domingo in the Dominican Republic in three sets with the American Trey Hilderbrandt. Den Ouden lost the first set 6-3, took the second after a tiebreak 7-6 and won the third 6-2. In the quarterfinals, the fifth placed Maarssenaar encounters the number 1 of the placement list, home player Nick Hardt.