Gulbis, who is ranked 375th in the ATP ranking, won 6-4, 6-2 against Anton Matusevičas, who represents Great Britain (ATP 579th).
The Latvian tennis player will face the winner of the duel between Israeli Ishai Olieil (ATP 355) and Swiss Jeffrey von der Schulenburg (ATP 1046) in the second qualifying round.
Gulbis earned two ATP ranking points for reaching the second round of qualification.
The Cuga “Challenger” tournament takes place on clay courts.
