Moya has a chance to win his fifth title at Umag on Sunday after
defeating Argentina's Guillermo Canas 6-3, 6-2 in one semifinal.
Pavel beat Serbian qualifier Viktor Troicki 6-3, 6-3 in the other.
Moya won the tournament in 1996, 2001, 2002 and 2003, and has a 42-8 record in Umag.
"Of course I hope to win again," Moya said.
He dominated the match from the start and gave up only one
service break, to put Canas up 1-0 in the second set.
Pavel advanced to his first ATP Tour final since Poertschach,
Austria, in May last year.
"It's like a dream right now," he said.
Pavel controlled the match against Troicki, making the most of
his precise backhand and a good serve.
Troicki, playing in his first tour semifinal, had ousted
top-seeded Novak Djokovic in the second round, but could not pull
off another upset. Troicki broke Pavel's serve to level the second
set at 1-1, but then lost the next four games.
The 21-year-old Troicki, ranked 176th, said he "physically
could not take it anymore. I was tired."