Age40
CountryDominican Republic
Residence Santiago, Dominican Republic
Turned Pro2002
The Dominican is unbeaten at the Ecuador Open, where he's aiming to win a fourth title.
The Spaniard will be taking on No. 79 Victor Estrella.
Kravchuk beat Estrella Burgos and Dancevic topped Sandgren.
This marks the third year in a row the Dominican has won the tournament.
Fourth-seeded Kohlschreiber eased past fellow German Mayer to set up a quarterfinal against the Argentine.