Camila Giorgi claimed her first WTA title since 2021 as she overcame Swedish qualifier Rebecca Peterson in three sets to secure the Merida Open crown on Sunday.

World number 68 Giorgi triumphed 7-6 (7-3) 1-6 6-2 over Peterson in a see-sawing decider that lasted two hours and 25 minutes in Mexico.

Giorgi seemed in strife when she trailed 2-0 in the third set after losing a lopsided second frame, but hit back emphatically by reeling off the final six games.

The victory was Giorgi's fourth WTA title and first since winning the Canadian Open in 2021, helping her return to the top-50 when the next rankings are released on Monday.

The Italian had qualified for her 10th career WTA final without dropping a set, including a 6-0 6-0 double bagel rout of second seed Sloane Stephens in the quarter-finals.

Peterson had enjoyed a resurgent tournament after an injury-hit 2022 season, but was unable to claim her first WTA title since 2019.