The Newman College student and Floreat resident said he had been expecting to make it into the Australian team, but was still very excited when the announcement was made that he would represent his country in the 3000m track event .
The 2015 Games will be held in Samoa from September 5 to 12.
"I started running when I was about 10 years old and got into middle distance when I was 12," Ben said.
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"This will be the first time Im in a national team representing Australia, so I was really excited when I found out."
Ben's coach is his dad and his mum acts as his dietician, cooking most meals.
He said his family's support was constant.
"I train about six times a week " Ill be working on aerobic capacity and then closer to the date Ill work on speed," Ben said.
"Im going in open-minded; it's my first international experience so it's hard to know what to expect.
"Im just going to give it a good crack and see what happens."
Ben said the advantage of running was that it did not take up too much of his time and he could still get his schoolwork done and see friends.
"I will be missing a bit of school this year because of the Games," he said. "I do want to go to university, but Im keeping an open mind, keeping my options open."