British number one Emma Raducanu enjoyed her first victory since an early exit from the Australian Open - and subsequent split from coach Francis Roig.
The 23-year-old dominated German Greet Minnen with a 6-0 6-4 success at the Winners Open in Romania.
Raducanu, the tournament's top seed, sent down three aces and forced four breaks of serve across the 70 minutes of play.
She will next face Slovenia's Kaja Juvan on Wednesday in the second round of the WTA 250 event.
The 2021 US Open champion was knocked out of the Australian Open in the second round last month after a disappointing 7-6 (7-3) 6-2 defeat by Anastasia Potapova.