The shredded 5ft tall mom-of-one, who weighs in at 110lbs (50kg) clinched an immensely creditable 5th place in the under 55kg category.
And here, in a gym video filmed by her hubby, she shows just how hard she works to achieve those eye-popping abs.
Rowena, who has been pumping iron for eight years, says: “I am a goal oriented type of person, focused in everything i do. But like any other women i love to have fun with my friends, love what other women does.
“Bodybuilding is not so popular in the Philippines, especially with women, there are only a few of us. In the future I can change that I want to be an ambassador.”
Rowena's female bodybuilding achievements include:
PBBA Cup Champ (women's div)
Ensayo Classic Champ (women's div)
Ms. Asia Pacific 2008
Ms. Asia Pacific 2009
Asian Championship 2009 (bronze)
World Women's Championship 2010 (4th place)
2013 Arnolds Amateur Under 55kg