Schraner defeated Hong Kong’s Tony Cheung 7-6, 6-9, 4-1 in the men's final, while Whitehead claimed a 7-11, 9-8, 2-1 win to beat New Zealand's Debbie White to the women's title at Adelaide Bowling Club.

"I’m speechless," Whitehead, 25, was reported as saying by The Advertiser.

"I’d never in my wildest dreams imagined that I would be a world champion."

In making her international debut at the event, Whitehead became the first indigenous female bowler to represent Australia.

She dedicated her victory to her grandparents, who she moved to live with in northeastern Victoria aged seven after re-locating from the Northern Territory.

"I just got into the sport for a bit of fun with my grandpa, but the places it’s taken me and what I’ve achieved is more than I could imagine," Whitehead told The Advertiser.

"My grandma is my biggest supporter and my rock."