This document summarizes a collaboration between Great Start and WCHAP to promote professional development around life course theory. WCHAP hosted a training event where they trained staff, provided a life course game, and awarded the game to the program with the most attendees. Great Start helped promote the event and gather information to further their goal of reducing infant mortality. The event brought together multi-sector professionals and parents to learn about life course theory through presentations and by playing the life course game. The goal was to discuss how life course could be used in the community to address issues like infant mortality and health disparities.