The 24-year-old world number 138 had to qualify in Cluj-Napoca and she capped off a stellar campaign at the Romanian event by claiming the trophy.
Blinkova won 6-2 3-6 6-2 in one hour and 41 minutes, dashing Paolini’s hopes of a second career title.
“I’ve felt great all 10 days I’ve spent here since last Wednesday,” said the Russian in her trophy acceptance speech. “I’m really looking forward to coming back next year.”
The WTA said Blinkova’s success made her the fifth qualifier to secure a tour title in 2022, following wins by Tatsiana Maria in Bogota, Anastasia Potapova in Istanbul, Bernarda Pera in Budapest and Caroline Garcia in Cincinnati.
Blinkova, who was once ranked 54th in the world, will return to the top 100 on Monday.