Tubieron is a former WBC International Bantamweight champion.
Amateur career
At the age of 17, Tubieron became the trainer of Kalayaan National High Schoolboxing team which later won an overall gold medal in the Palarong NCRboxing division. The victory in the regional level earned the team's opportunity to compete at the national competition. In the 52nd Palarong Pambansa (Filipino for "National Games") was held in Tacloban City, Leyte. The student participants of KNHSboxing team won 1 gold, 2 silver and 2 bronze medals respectively.
Tubieron juggled his amateur boxing career and high school studies to be able to help his family financially. Tubieron eventually decided to discontinue his high school education to pursue a career in professional boxing.
Professional career
In 2009 at the age of 19, he joined Ariscon's boxing stable. After three years, he was eventually led to Gabriel "Bebot" Elorde's boxing stable and continued his boxing career under his management. He currently resides in Sucat, Parañaque and is training under the Elorde boxing stable.
Tubieron made his professional debut on June 20, 2009 against fellow Filipino Claver Ventolero. The bout took place in Muntinlupa Sports Complex, Tunasan, Muntinlupa, Metro Manila and he won via a unanimous decision.
On September 26, 2014, Tubieron scored a minor upset over highly touted FeatherweightprospectRogelio Jun Doliguez[3] in the headliner of Saved By The Bell Promotions’ boxing card held at the Mandaluyong City Gymnasium. Tubieron had his hand raised in victory via Technical Majority Decision with the scores of 47-47, 47-46 and 47-46 after Doliguez suffered a deep cut on his forehead following a clash of heads, prompting referee Sammy Bernabe Sr. to halt the contest at the end of round five.
On December 28, 2014, he fought to a draw against Carlo Magali[4] for the vacant WBC International Featherweight championship. Magali suffered a cut on his right eyelid from an accidental clash of heads. The automatic point deduction prevented Tubieron from becoming the fourth Filipino owner of the title.