Klara Zakopalova picked up her first WTA singles title since 2005 on Saturday.
The 32-year-old from the Czech Republic overcame second seed Garbine Muguruza to win the Brasil Tennis Cup in Florianopolis.
Zakopalova had lost her last six finals, including a 6-1 4-6 6-1 defeat to Kurumi Nara at last week's Rio Open.
It looked as though that record was about to be extended when Muguruza powered into a 6-4 5-2 lead, but Zakopalova fought back incredibly to win 11 consecutive games and secure a 4-6 7-5 6-0 victory.