Mertens, of Belgium, didn't drop a set all week on her way to her eighth career singles title.
Jiangxi OpenKaterina Siniakova overcame three match points, seven double faults and a first-set thumping to defeat third-seeded Marie Bouzkova to win the all-Czech final 1-6, 7-6 (5), 7-6 (4) in Nanchang, China.
The match between the countrywomen lasted three hours, 33 minutes, making it the longest WTA final in 2023.
Transylvania OpenTamara Korpatsch of Germany won her first career WTA title, defeating home-country favorite 6-3, 6-4 in Cluj-Napoca, Romania.
It was the first tour final for the 28-year-old Korpatsch, who needed one hour, 52 minutes to get the win.
Persons:
Storm Hunter, Belgium's Elise Mertens, Canada's Gabriela Dabrowski, Erin Routliffe REUTERS, Henry, Elise Mertens, Jasmine Paolini, Mertens, Katerina Siniakova, Marie Bouzkova, Siniakova, Bouzkova, Tamara Korpatsch, Ruse, Korpatsch
Organizations:
Panamerican Tennis Center, Storm, Monastir, Jiangxi, WTA, Germany, Ruse, Thomson
Locations:
Guadalajara, Mexico, Jasmin, Italy, Tunisia, Belgium, Nanchang, China, Cluj, Napoca, Romania