The four-year-old colt, a close third to rivals Sierra Leone and Fierceness in the 2024 Classic, was primed for his big win this year.
Forever Young
The post positions were drawn for the 14 races of the 42nd Breeders' Cup World Championships and 177 horses were entered.
Longshot winner of the $12 million Dubai World Cup is from a daughter of Woodbine Oaks winner Milwaukee Appeal.
The $12 million World Cup will be run at 1:30 p.m. Eastern on April 5 and highlights a big card of racing at Meydan.
Japan's superstar colt was passed by Hong Kong hero Romantic Warrior turning for home but then rallied to grab the win.
Handicapping has started in earnest on the 14 races on Friday and Saturday for the 41st Breeders' Cup, this year at Del Mar.
Derby and Oaks horses were out and about at Churchill Downs on April 24, including a stamina-type work for Forever Young.
Forever Young has never lost a race and is scheduled to meet up with his cousin Sierra Leone in the May 4 Kentucky Derby.