Has Kai ever beaten the season's main villain?

The Great Devourer was beaten by Garmadon, Lloyd beat the Overlord, Zane beat the Golden Master, Garmadon and Pythor banished Chen and his armies, Nya defeated the Preeminent, Jay beat Nadakahn, Wu defeated Krux and Acronix, Lloyd beat Garmadon, the Tornado of Creation defeated the Oni (though it was Lloyd who suggested it), Zane defeated Aspheera and Lloyd snapped him out of being the Ice Emperor, Jay saved everyone from Unagami, Cole defeated the Skull Sorcerer, and Nya defeated Wojira. I...