Moore taught Stra how to be a horseman—how to communicate with horses by reading their body language and having a keen feel for what they're thinking.
Stra eventually racked up approximately 500 victories in her native country and became the "poster girl" for Australian horseracing.
Stra returned to professional horse racing in January 2013, after the birth of her son, Brys Headley, in November 2012.
Soon after her return to racing, a steward banned her from the Betfair Hollywood Park jockeys' room for breastfeeding her son.
One of the stewards had allegedly told Stra's agent that she needed to decide whether she was going to focus on caring for her child or her profession.
California Horse Racing Board chairman David Israel overruled the steward, stating "Kayla Stra's baby can be in the jocks' room.