Corinaldi Avenue Primary of St James easily defended their INSPORTS/Devon Biscuits Athletics Primary Schools Western Championship winning by 56 points.
Corinaldi Avenue finished ahead of Black River Primary and Glen Stuart Primary.
Corinaldi walked away with $350,000 for their effort, while Black River collected $250,000 for second and Glen Stuart $200,000 for third.
The teams placed fourth to 10th will get $100,000 each.
The schools will now turn their attention to the all-island championship from May 20-22.
Lyssons of St Thomas won the Eastern Championship and Naggo Head of St Catherine won the Central Championship.
The national champion will walk away with $600,000. Lyssons are the defending champions.