Career
He is a native of the province of Negros Occidental. At the Asian Games 2006 he upset Worapoj Petchkoom and beat Han Soon Chul of of Korea in the final 21-10. At the World Championships 2007 he lost in the first round against Worapoj Petchkoom 5:13.
As of 2012, Joan is now a Full Time Trainer for people who wanted to play boxing.
He stated that: "Gusto kong magustuhan ng tao ang paglalaro ng boxing kasabay nito ay ang Ibahagi sa kanila ang salita ng Diyos" ("I"d like people to enjoy the sport of boxing and at the same time Share with them the word of God ").