French Open runner-up Sara Errani beat Irina-Camelia Begu of Romania 6-4, 6-1 on Saturday to reach the Italiacom Open final and a chance for her fourth title of the year.
The top-seeded Errani has dropped just 16 games in four matches. She also won in Palermo in 2008.
Her other victories this year were in Budapest, Barcelona and Acapulco.
British teenager Laura Robson's impressive run ended with a 2-6, 7-5, 6-2 loss to eighth-seeded Barbora Zahlavova Strycova in the other semifinal.
Robson, a Junior Wimbledon champion four years ago at 14, appeared in her first WTA semis.
Zahlavova Strycova, a Czech, won her only WTA title in Quebec City last year.