This is a remarkable because he has only been competing in archery for two years.
Lancaster (51), a crossbow specialist, finished fourth in the discipline at last year's world masters championships at Adelaide.
His personal-best score in the crossbow event is 1363 of a possible 1400 points.
To make the jump from masters to open competition so quickly indicates that Lancaster is an archer with much natural talent.
Australia is particularly strong in the crossbow and has the top two ranked archers in the world in the open men's grade. Lancaster is ranked fourth and Trevor Hancock is ranked top.
"I don't think I'm a natural but I found it quite easy to fall into it," he said.
"I'm just dedicated and enthusiastic about what I do.
"I put a lot of heart and soul into the way I shoot and the way I practise and I want to achieve."
He has also had several mentors who have shown him the correct techniques and pointed him in the right direction.
Lancaster has 10 hours of practice each week and at least one competition.
His strongest distance event is the 50m and his Achilles heel is the 60m.
"I have a very soft spot for the 18m indoors," he said.
It was a remarkable start to his archery career because he had never held a bow in his hands before he started.
Lancaster, a mining technician in Newcastle, is the New South Wales open champion in the short course, long course and the field.
He is no stranger to international sport and represented Australia at the world ice speed skating championships in the early 1970s.
Lancaster competed in the archery at Chingford Park at the weekend.
