The Italian received 4-6 7-5 7-5 and claimed her first WTA 1,000 victory, regardless of being 5-3 down within the deciding set.
World quantity 40, Kalinskaya, of Russia, was serving for the match within the third set however she by no means reached match level.
Paolini received 16 of the final 19 factors to win the ultimate 4 video games and safe the victory.
“I am actually shocked,” Paolini mentioned. “I am actually blissful. It was a extremely robust match. She’s enjoying unbelievably.
“To return again was actually robust. I attempted to remain optimistic each level. I am actually pleased with myself.”
The 28-year-old, the world’s quantity 26, received her first WTA singles title on the WTA 250 Portoroz in 2021.
She has been in three finals since in quest of her second WTA title however had misplaced all of them till Saturday’s victory towards Kalinskaya.
The Russian qualifier got here into the ultimate in fantastic kind, having ended Iga Swiatek’s seven-match profitable streak when she beat the world primary within the semi-finals.
However Kalinskaya, who knocked Paolini out of the Australian Open in January, failed to duplicate that kind within the ultimate.
