Casen Riley died of cardiomyopathy and the tournament and inaugural 5K helped raise money for the "Childrens Cardiomyopathy Foundation," which researchs the disease and provides family support.
Casen's mom says that this event allows the family to both celebrate his birthday. And help families in similar situations.
"It makes us very happy that Casen have being here is the way of helping other families. Like knowing that he made all of this possible," she said.
For more information, or to donate, head to www.casenriley3on3basketball.com.