Miyu Yamashita co-leads in Japan, chasing back-to-back LPGA wins.

Miyu Yamashita shares the first-round LPGA lead in Japan.

She shot a bogey-free, 6-under 66 at the Toto Japan Classic on Thursday.

The round took place at the Taiheiyo Club Minori Course in Omitama, Japan.

Yamashita is tied with two other Japanese players: Aki Iwai and Sayaka Takahashi.

All three players posted 66s for a one-stroke lead.

This is the first round of the tournament.

There are 54 holes remaining.

Yamashita is coming off a win at the LPGA’s Maybank Championship in Malaysia last weekend.

That victory was her fourth LPGA Tour win of 2026.

She has five total professional wins across three tours this season.

Those wins include the Sony JLPGA Championship and the Aramco Championship in South Korea.

She also won the 2025 AIG Women’s Open.

Yamashita is currently ranked fourth in the world.

Her opening round in Japan was marked by precision.

She hit 17 of 18 greens in regulation.

She needed only 29 putts.

She finished the round with consecutive birdies.

Those numbers reflect the kind of ball-striking that makes a player difficult to beat.

Aki Iwai matched Yamashita’s 66 after an impressive back-nine surge.

Iwai finished second at the Walmart NW Arkansas Championship in late September.

She also finished third at the Amundi Evian Championship this season.

Sayaka Takahashi is a two-time winner on Japan’s JLPGA Tour this year.

She fired a 66 and will have home-crowd support.

One stroke behind the leaders are Minami Hiruta, Fuka Suga and Thailand’s Pajaree Anannarukarn.

They each opened with 67.

Defending champion Nasa Hataoka sits two strokes back after a 68.

She shot 68 on the 6,598-yard layout.

Nine players were two off the lead after 68s.

World No. 2 Jeeno Thitikul faces an uphill battle.

She opened with a 2-over 74 that included five bogeys.

Thitikul is the favorite to win for a fifth time this year.

The Toto Japan Classic is the last of four tournaments in the LPGA’s late-season Asian swing.

The LPGA’s Asian swing makes its final stop at the Taiheiyo Club.

Yamashita is 25 years old.

She is building an increasingly impressive international résumé.

The leaderboard is crowded enough that nobody can afford a mistake.

But Yamashita has already demonstrated she knows how to win.

She is chasing her fourth LPGA Tour victory of 2026.

She is also chasing her sixth title worldwide in 2026.

The weekend will determine whether she can go back-to-back.

A win in Japan would make it two LPGA victories in a row.

That would put her in elite company for the 2026 season.

The field includes 78 players competing for the title.

The tournament offers a full field of LPGA professionals.

The course measures 6,598 yards.

The par is 72.

Yamashita’s bogey-free round was a statement of form.

She showed no signs of slowing down after her Malaysia win.

The rest of the LPGA Tour might have a serious problem on its hands.

But the tournament is far from over.

Iwai and Takahashi are both playing excellent seasons.

Hiruta, Suga and Anannarukarn are just one shot back.

Hataoka is defending her title and within striking distance.

Thitikul, despite her poor start, is capable of a comeback.

The world No. 2 has won four times this year.

She is not out of contention yet.

But the spotlight is on Yamashita.

She is the hottest player in the field.

She has momentum, confidence and a proven winning formula.

Her ball-striking numbers from round one are elite.

She hit every green but one.

She putted efficiently.

She closed with birdies.

That is how champions play.

The second round will test whether she can sustain it.

Aki Iwai will try to keep pace.

Sayaka Takahashi will have the crowd behind her.

The weekend will decide the champion.

Yamashita has the chance to make history.

A win would be her fifth LPGA title of the year.

It would be her sixth worldwide.

It would be back-to-back wins.

That is a rare feat on the LPGA Tour.

Only a few players have achieved it in recent years.

Yamashita is playing at a level that suggests she can.

But golf is unpredictable.

One bad round can change everything.

The leaderboard is tight.

Three players are tied at the top.

Six players are within one shot.