Jeeno Thitikul Defends Mizuho and Forces the LPGA's Big Story to Get More Interesting

Image: Unsplash / Wolf Hofer

Jeeno Thitikul just kept the LPGA season from turning into a one-player parade.

On Sunday, May 10, 2026, Thitikul defended her title at the Mizuho Americas Open at Mountain Ridge Country Club in West Caldwell, New Jersey, closing with a 3-under 69 to beat Ruoning Yin by four shots. According to the Associated Press report carried by Golf Channel, it was Thitikul’s second LPGA win of 2026 and the ninth title of her LPGA career.

That is the clean headline.

The better one is that the women’s-golf season suddenly feels less tidy again.

The Sunday Turn Came Late, Not Early

This was not a wire-to-wire stroll disguised as a battle.

The AP recap said Yin rallied from four back to get within one shot before the key moment at the par-3 16th, where Thitikul made birdie and Yin made bogey. That two-shot swing effectively ended the suspense, and Thitikul added another birdie on 18 to finish it off properly.

That matters because it gave the win more bite than a simple leaderboard hold.

Thitikul did not just protect a lead. She answered pressure late.

This Is Now a Two-Win Season for Thitikul

The Mizuho win backed up what Thitikul already did on February 22, 2026, when she won the Honda LPGA Thailand on home soil. Coming into Mizuho week, Reuters described her as world No. 2, which fit the broader shape of the season even before Sunday.

Now the resume looks stronger:

• Honda LPGA Thailand winner
• Mizuho Americas Open winner
• defending champion at Mizuho
• nine career LPGA titles

That is not “nice season so far” material. That is real top-end pressure on the rest of the tour.

Why This Win Lands at the Right Time

The most obvious LPGA storyline entering May was still Nelly Korda.

That made sense. Korda won the Chevron Championship on April 26 and then won again at Mayakoba on May 3. The LPGA’s own May 4 piece said she moved to within four points of LPGA Hall of Fame qualification.

That is huge. We wrote about that directly in our Nelly Hall of Fame column.

But a season gets better when the second-best player actually pushes back.

That is what Thitikul just did.

Mizuho Also Quietly Gave the LPGA Another Useful Week

There was already extra attention on this event because of the Michelle Wie West connection and the broader women’s-golf momentum around WTGL, which just added six more players last week. The LPGA did not need another sleepy leaderboard with the same storyline carrying over unchanged.

Instead, it got a result that sharpens the next month.

If you missed the broader backdrop, start with WTGL’s latest roster push and the follow-up opinion on why women’s team golf has a better shot than the men’s version at feeling fresh.

Bottom Line

Jeeno Thitikul defended the Mizuho Americas Open on May 10, 2026, beating Ruoning Yin by four and collecting her second LPGA win of the season.

That is the news.

The more important part is what it does to the season: it makes sure the LPGA’s biggest current story is not just whether Nelly Korda can keep stacking milestones.

It is whether somebody good enough to matter is going to keep making her earn them.