John was born in West Covina, CA. He graduated from Jesuit High School in 1998. BA from the University of California - Davis. One of 4 children to Dr James and Barbara Joyce. Water polo was in the family, his brother, Michael also played at Jesuit and St Marys College in Moraga.
While at Jesuit High School John was All Section and All League in Swimming and Water Polo under Coach Bruce Hastie. John played at UC Davis from 1998 to 2001. He was 2nd Leading Scorer his Freshmen year.
John has coached at Jesuit High School from 2003 to 2005
President/CEO of the Sacramento Water Polo Foundation from 2011-2014.
Head JV Coach at Jesuit from 2016 to present.
Financial Advisor for Sutter Wealth Management