Third-seeded Spaniard Angeles Montolio captured her second title in less than a month by beating unseeded Argentinian Mariana Diaz-Oliva in Sunday's Croatian Bol Open final.
Montolio rallied for a 3-6 6-2 6-4 victory to earn the top prize of £19,000.
She won the Estoril Open in Portugal, another clay-court event, with a three-set victory over Elena Bovina on April 15.
"It feels good to have won another tournament so soon," she said.
"The first set was quite difficult as you're always a bit nervous during a final. Maybe I had a little bit of luck on some points, but I'm happy the way I played.
"It's good to have good results on clay."
Diaz-Oliva had upset top seed Kim Clijsters of Belgium to reach her first final.
"Despite losing, I'm still happy because I fought as hard as I could," she said.
"It was a very close match but I was getting tired.
"It was getting very hard to breathe and Angeles is very tough to play and she goes for every point. At the end of the match, she played better."