The 34-year-old Brazilian generate three goals in the second, 43rd and 72nd minutes for the Beetles to successfully defend their title.
The victory also marked the season’s third domestic title for Chiangrai who already bagged the League Cup and Thailand Champions Cup ahead of the Saturday’s game.
Apart from the champions’ prize money of Bt5 million, Chiangrai will also gain a berth into the preliminary round two of the 2019 AFC Champions League.