Kobori finished the opening day five-under-par to sit tied for second, one shot back from leader Yoshinori Fujimoto of Japan.
“It’s always good to perform. We had a lot of people out there today, so it’s nice to play in front of them and then give them something that they came to watch,” Kobori said.
“Putting on a good performance for them, that’s all that matters here.”
The Kiwi played a smart round, hitting 14 of 18 greens in regulation, and was impressive with his putter as he only needed 27 putts.
“I rolled the ball really well and then my distance control was quite good as well into the greens. Because it’s quite firm already, there’s not much room for error,” he said.
Kobori was one of five players tied at five-under-par.
The next best Kiwi was Kerry Mountcastle, who sat one shot further back after shooting 68 in his first round.
Japan-Australasia Championship top five Kiwis in the field
Kazuma Kobori: -5 and tied for second
Kerry Mountcastle: -4 and tied for seventh
Michael Hendry: -3 and tied for 15th
Nick Voke: -2 and tied for 25th
Sam Jones: -1 and tied for 39th
Christopher Reive joined the Herald sports team in 2017, bringing the same versatility to his coverage as he does to his sports viewing habits.