[7] In April 2015 he won his second Asian Development Tour event, the ICTSI Eagle Ridge Invitational, in the Philippines, a result that lifted him into the top 300 in the world rankings.

After his successes in early 2015 his best finishes in world ranking events were to be twice tied for fourth place, in the 2018 PGM Johor Championship on the Asian Development Tour and in the 2018 Guilin Championship on the PGA Tour China.

In addition to his two Asian Development tour wins, Irawan won two tournaments on the domestic Professional Golf of Malaysia Tour, winning the season-ending PGM Maybank Players Championship in 2014 and 2017.

He was taking part in the Sanya Championship, the second event of the 2019 PGA Tour China season.

[11] Early indications were that his death was from natural causes, but the tour added that "the coroner has not completed his report."