Pagunsan turned professional in 2006 at the age of 27 and immediately qualified for the
Asian Tour. He had 4 top-10s in his rookie season, and he made over $290,000 in earnings. This remains his most successful season on Tour financially. He had two wins on smaller venues in Asia in 2006 and 2007. In 2007, Pagunsan won his first title on the Asian Tour at the
Pertamina Indonesia President Invitational, where he finished birdie-eagle to defeat
India's
Gaganjeet Bhullar by a slim margin. He did not win an event in 2008, but had three top-10s including a second-place finish to
Mo Joong-kyung at the
Singha Thailand PGA Championship. In 2011, Pagunsan won the Asian Tour Order of Merit. Since 2012 Pagunsan has played primarily on the
Japan Golf Tour. His first win on the tour came at the 2021
Gateway to The Open Mizuno Open, having previously had a number of runner-up finishes, including the 2012
Japan Open Golf Championship, the 2013 and 2014
Indonesia PGA Championship, the 2014 Gateway to the Open Mizuno Open, the 2017
SMBC Singapore Open, the 2019
Shigeo Nagashima Invitational Sega Sammy Cup and the 2021
Asia-Pacific Diamond Cup Golf. Pagunsan qualified for the
2020 Tokyo Olympics by making it to the Top 60 of the
International Golf Federation Rankings. ==Amateur highlights==