Kim Clijsters clocked her big forehand during a tough first round win over Alexandra Dulgheru.
Carla Suarez Navarro reached her second straight Andalucia Tennis Experience final this year.
Stefanie Voegele was in good form but fell to red hot Maria Jose Martinez Sanchez in her opener.
Tatjana Malek got to the quarterfinals before running into eventual runner-up Carla Suarez Navarro.
Polona Hercog, a finalist on the clay of Acapulco, lost to Carla Suarez Navarro in the second round.
Kim Clijsters didn't go down without a fight, losing to Beatriz Garcia Vidagany in three long sets.
Carla Suarez Navarro was a point from a 62 41 deficit but fought hard to win her semifinal match.
Beatriz Garcia Vidagany showed off her athleticism and reach during a shocking run to the quarterfinals.
Flavia Pennetta didn't drop a set until the final, but Simona Halep was a tough test in the quarters.
Anabel Medina Garrigues ground out a win over fellow Spaniard Arantxa Parra Santonja under the lights.
Victoria Azarenka's 63 60 opening round win over Yvonne Meusburger was tougher than it looked.
Kim Clijsters ground out a three set win over tough clay courter Alexandra Dulgheru in the first round.
Beatriz Garcia Vidagany made a splash in her first Sony Ericsson WTA Tour event, reaching the quarters.
Sara Errani's determination took her all the way to the semifinals, where she fell to Flavia Pennetta.
Aravane Rezai couldn't find the answers during a straight set second round loss to Tatjana Malek.
Flavia Pennetta struggled mid-match but would overcome Carla Suarez Navarro in the final, 62 46 63.
Kim Clijsters left the court after a disappointing second round loss to Beatriz Garcia Vidagany.
Romanian upstart Simona Halep stayed in good spirits despite a quarterfinal loss to Flavia Pennetta.
Flavia Pennetta met Yaroslava Shvedova at the net after beating the Kazakhstani in the first round.
Beatriz Garcia Vidagany met Kim Clijsters at the net after she upset the No.3 seed in the second round.