Slovakian Martina Sucha ended American qualifier Abigail Spears' improbable run with a three-set victory in the Bell Challenge final on Sunday.

Sucha, who will turn 24 later this month, recorded her second career title and first since Hobart in 2002 with a 7-5 3-6 6-2 triumph in this Tier III event.

Playing in her first final since Budapest in early May, Sucha claimed US$27,000 for winning first prize in the penultimate WTA Tour event of the year.

"It's been a long time since my first title," Sucha said.

"This tournament is bigger than Hobart, but I can't compare the two because both of them are very special."

In a tournament plagued by upsets, Sucha had defeated qualifier Sesil Kararantcheva of Bulgaria to advance to the semi-finals, where she ousted Maria-Emilia Salerni of Argentina on Saturday.

"It was really tough," Sucha said.

"We both were really tired from the tough matches that we had this week. This one had a lot of rallies, but (Spears) had more matches, so she may have been more tired."

Spears, who was in search of her first career WTA title, had left the likes of fourth seed Jill Craybas in her wake en route to her first final.

"This was a great week for me," said Spears, who was attempting to become the fourth qualifier to win a WTA singles title.

"I'm happy with how I played all week. This is the best tournament for me, and I can definitely take a lot of confidence from this week into the rest of the year."

Despite falling in the finals, Spears is expected to crack the top 100 for the first time in her career when official rankings are released on Monday.