That moved her from one shot back to a two-shot victory. Faldo's famous win in Georgia inspired her name.
9 AHEAD of a tournament in Abu Dhabi previous year, Hall hit a drive of 579 yards on Yas Marina race track, believed to be the world's longest drive by a female golfer.
Hall missed the cut in the 2016 Women's British Open, but she responded superbly with four consecutive top-seven finishes on the Ladies European Tour, but it was her 2017 campaign in which she became a prominent figure on the world stage.
Across the pond in Akron, Ohio, Justin Thomas put in an imperious performance to win the WGC-Bridgestone Invitational by four strokes to lay down a marker ahead of his defense of this week's US PGA title, the year's final major.
Hall is the first English major victor since Karen Stupples won this event in 2004, and the fourth overall along with Laura Davies and Alison Nicholas.
She became the first English player of either sex to win a major at Royal Lytham since Tony Jacklin won the 1969 British Open.
Of the other British participants, England's Bronte Law finished tied 39th on level par, Matthew was a shot worse off in tied 42nd, and Wales' Lydia Hall ended in tied 55th on six over.
Pornanong began the day with a one-shot lead over Hall and four birdies from her first six holes doubled her advantage.
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From the moment Phatlum curled in a long left-to-right putt at the second hole to answer Hall's 15-foot birdie at the first, it had the makings of a duel in the Lytham sun. "Yeah, it's going to be big experience for me." said Pornanong.
But a 70 earned her second place on 15 under, with Ryu (70) another two shots back in third.
But she could not break clear of England's Georgia Hall, who sank a 10-foot birdie at the last hole to card a 69 and keep the heat firmly on the leader.
The large lead allowed 22-year-old Hall to enjoy the rousing reception she received on her victory march up to the final hole, where a three-putt bogey was academic.
Hisako Higuchi, victor of the LPGA Championship in 1977, remains the only Japanese player to win a major championship on either the PGA or LPGA Tours. She finished 2017 as the Ladies European Tour Order of Merit victor and Players' Player of the Year.
After shooting an opening-round 67, Hall - a superstitious golfer, to say the least - ordered her father and caddie, Wayne, not to change or wash his socks for the rest of the Open. I've gotta go out there tomorrow and try to play my best and maybe be a little bit more aggressive than I had been going. I'm so happy she win, " the Thai said.
"I just had to stay calm and patient".
But Hall's most notable performance of a year ago was on her full Solheim Cup debut, winning two matches alongside Anna Nordqvist and taking the experienced Paul Creamer to the final hole of their hard-fought singles clash on the final day.