Both Lester Edwards and Jesse Dowling scored doubles for the winners while Kevon Fredericks got the other goal. Keston Grant scored the consolation for Cautions.
But North Hills and Tunapuna Titans drew 2-2 with Palo Barker and Akiel Payntor scoring for the Hills while Clint Seetahal got both for Titans.
In First Division action, Football Miscellaneous beat YTC 3-2 with Johnaton Romain, Elson Jerry and Emmanuel Antoine scoring for the winners. Tevin Steele and Kaylon Mitchell scored for YTC.
Kareem Terry scored all four goals as GEMS whipped SBCS 4-1 in another game. Leehan Anderson got the consolation.
But Dream Team and Love Struck drew 1-1 and St Joseph United and Petit Bourg Youths also ended 1-1.
David Maloney got the goal for the Dream Team while Keenan Osbourne got the Love Struck goal.
And Shevon Joseph netted for the St Joseph team while Keon John got the goal for Petit Bourg.
Harvard beat K Brands 4-3 on penalties to win the league opener and Richard “Dougee” Lee Memorial Trophy.