Meti, who also captured the title in 2006 and 2016, beat South African Chloe Garner with a 313 yard (286 metre) effort in the final in Oklahoma.
Meti also beat Garner in a dramatic showdown in 2016 when she won with her last eligible drive of the match.
Meti was just 19 when she won the title for the first time in 2006 and in the 12 years since has also pursued a career on Tour.
But her prodigious hitting has always been the strength of her game and in 2016 she returned to the World Long Drive circuit and claimed her second belt.
She and Garner are among the format’s most consistent performers and it was no surprise to see them duel for the title this year.
Meti joins Sandra Carlborg (five) and Stacey Shinnick (three) as the only players to capture the belt three or more times.
LPGA Tour player Emily Tubert, who made headlines last month when she won the first World Long Drive event she entered, made it to the semi-finals in Oklahoma but lost to Garner who produced a 319 yard effort to Tubert’s 305 yard shot.
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