The Australian event is a lead up to the World Short Course championships in December to be hosted in Canada.
Pini told Loop PNG that preparations are going well following the PNG National Short Course championships held earlier this month in Port Moresby where he competed in a number of events.
This was the first racing he had done since the Olympics and used it as a trial to see where he was at.
“I raced well at the National Titles but I felt I needed improvements in my speed component,” Pini said.
The Australian Short Course will be the last event before he travels to Canada for the World Short Course.
“I am hoping to edge closer to my personal best times which were all set two years ago at the World Short Course championships in Doha,” Pini added.
At Doha in 2014, Pini clocked in at 51.93 sec in the 100m backstroke, 23.31 sec in the 50m butterfly, 22.16 sec in the 50m freestyle, 24.08 sec in 50m backstroke, 52.18 sec in 100m butterfly and 48.24 sec in the 100m freestyle.
Pini highlighted that he won't be in full preparation for the world event until December.
At this stage only one other PNG swimmer, Sam Seghers has qualified for the competition.