After 25 years of working with the Inquirer Group of Companies, Dennis decided to make an early retirement due to the pandemic. Formerly a college editor of UE’s The Dawn, Dennis learned the craft from the country’s leading chroniclers of sports namely Recah Trinidad, Al Mendoza, Doc Inigo, Tito Tagle, Jimmy Cantor, Chito Manuel and the late Larry Galvez, In the early 90s, Dennis became a section editor of Riyadh Daily, Saudi Arabia’s first English newspaper. He is an active member and officer of the Philippine Sportswriters Association, Tabloids Organization in Philippines and the Sports Communicators Organization in the Philippines, An award-winning sportswriter, Dennis covered local and international sporting events, while working at Sports Flash, Malaya, Headline, Evening Standard, Philippine Daily Inquirer,Libre and Bandera.