Ewart Shadoff's compatriot Georgia Hall finished tied third on 13 under.

"It's a little bit surreal," said Ewart Shadoff, after earning her maiden triumph at the 246th attempt.

She added: "I didn't know if this moment would ever come.

"I'm just really grateful for everybody who's on my team. Last year was really hard - I'm standing here because of them. I'm just really grateful."

Ewart Shadoff, who struggled with injury last year, briefly lost the lead after a front nine featuring two bogeys and a birdie.

However the Yorkshire-born world number 93, who had recorded 27 top-10 finishes in her bid for a first success, steadied herself by picking up shots on the 12th and 14th. Victory was closed out with four successive pars.

"I've been through a lot in the past couple of years, injuries, and last year was really tough. I found it a pretty significant mental challenge to get through that," she said.

"There were times during last year I didn't think I would be playing this year so to be stood here today is really awesome.

"I didn't give up on myself. I have a lot to be grateful for."