Petelo turned professional in 1993, and accumulated a record of 10–2–2 before receiving his first shot at a world title in 1997.
Mini-flyweight As a significant underdog, Petelo scored a fourth-round
knockout over long reigning
IBF mini-flyweight champion,
Ratanapol Sor Vorapin, ending the champion's streak of 20 consecutive title fight victories. Petelo successfully defended his title five times against challengers Faisol Akbar, Carmelo Caceres,
Eric Jamili,
Juanito Rubillar, and
Mickey Cantwell. He vacated the title in 2001 in order to move up in weight.
Junior-flyweight On
29 September 2001, he unsuccessfully challenged
IBF junior-flyweight champion,
Ricardo López, losing by eighth-round knockout.
Retirement Following the loss to Lopez, Petelo remained inactive for the following three and a half years. In 2005, he returned to the ring against former
IBO champion Zolile Mbityi, losing a closely contested eight-round
majority decision. After suffering another decision loss, Petelo retired from the sport of boxing. ==Professional boxing record==