Kuwaki held her nerve to sink the putt that clinched the trophy after two play-off holes of unrelenting tension at Royal Lytham & St Annes.
The 23-year-old had finished the regulation four rounds on five under par for the tournament, with Germany’s Henseleit nailing a brilliant long putt on the 18th hole to force the play-off.
The pulsating finale provided a fitting climax on the 50th anniversary of the event as Kuwaki announced her arrival as one of the sport’s rising stars.
Kuwaki banked a tournament record US$1.5 million in prize money, but finally getting her hands on a major trophy was worth far more than any amount of cash.
She is the second successive Japanese player to win the women’s British Open after Miyu Yamashita’s triumph at Porthcawl last year.
“I just can’t believe it. To be on a stage like this is an honour and every hole I was just focused on shot by shot. I just tried to enjoy it as much as I could,” said Kuwaki, who is the fourth Japanese woman to win the British Open after Yamashita, Ayako Okamoto and Hinako Shibuno.
“It’s an amazing feeling to win again as a Japanese player. I hope as team Japan we can continue to light up the golf world.”
Referencing the death of at least 36 people in her homeland, she added: “Recently we had an earthquake in Japan and I’d like to wish people a speedy recovery and best wishes.”
It was an unexpected breakthrough for Kuwaki, whose previous best finish at a major came in this year’s women’s US Open when she tied for 14th place.
She turned professional in 2021 and won the Japan LPGA Tour Championship Ricoh Cup in 2024.
Known for her exuberant fashion sense, Kuwaki was dressed in a mint green top and used a luminous green ball – an eye-catching statement that she backed up with her sensational performance.
She missed the halfway cut on her only previous appearance at the women’s British Open last year, but her return to the UK proved a transformative trip.
Overnight leader Yealimi Noh wasted a three-shot lead as she ended in third place on four under par.
World number one Nelly Korda and South Korea’s Ryu Hae-ran both fell short in their bids for a historic third major title in 2026. (AFP)
