It appears the wee hours of Monday in the world’s 11th-most-populous country will prove sleepless and breathless. Japan, with its 47 prefectures and its 126 million people and its outstanding respect for golf and for sport, will switch its TVs to Tokyo Broadcasting System, which kindly will beam in some drama from 13 time zones away. Things could get nerve-racking in those living rooms.

They also could get rapturous. In a development that long has seemed plausible for someday in the future, someday showed up Saturday at the Masters when Hideki Matsuyama treated the back nine at Augusta National to some of the utmost brilliance it has ever allowed, shooting a 30 that should have had violin accompaniment. When the ­29-year-old from the city of Matsuyama in the prefecture of Ehime closed his 65, the only round of all the round this week to lack even one bogey, he led the 85th Masters by four shots heading for Sunday.

It was a fresh perch even for this compelling talent who has finished in the top 10 in seven major tournaments, including at least once in all four of them. By playing the last eight holes after a weather delay Saturday in 6 under par, with a legit eagle at No. 15 surrounded by four other birdies, he had ventured from 5 under and the gifted muddle behind second-round leader Justin Rose all the way to 11 under, ahead of a horde at 7 under. That group included Rose, who hung on to his game despite some loose gaskets to land at even-par 72; habitual contender Xander Schauffele; 37-year-old Australian Marc Leishman; and 24-year-old bale of future Will Zalatoris, who has moved from No. 2,006 in the world at the end of 2018 to No. 46 nowadays. Canadian Corey Conners, who made a hole-in-one on No. 6, lurks at 6 under, with 2015 champion Jordan Spieth one behind that.

“Right before the rain delay, I probably hit the worst shot I’ve hit all week,” Matsuyama told reporters in Georgia of his drive into unwanted proximity to nature on the right of No. 11. “And during the rain delay, I just figured, ‘I can’t hit anything worse than that.’ And so maybe it relieved some pressure, I don’t know, but I did hit it well coming in after the delay.”

His lead had a heap of significance for someone so young to carry around a major Sunday, but luckily Matsuyama has frequented majors since the 2011 Masters, when he finished as the low amateur at 19 as the winner of the Asia-Pacific Amateur. He has reached No. 2 in the world and holds down No. 25. Still, he seeks to become the first Japanese man to win a major title, following upon two women’s winners: the pioneering Hisako Higuchi at the 1977 LPGA Championship and Hinako Shibuno, who won a major at her first major, the 2019 Women’s British Open. He also would follow his teenage countrywoman from the Augusta National Women’s Amateur last week, winner Tsubasa Kajitani.

Further, he would provide the Masters with a 12th nationality among its champions and become the first new addition since Adam Scott of Australia in 2013.

As for what all of that would mean, he told reporters: “I’m not sure how to answer the question. All I can do is prepare well, try my best, do the best that I can tomorrow.”

“He’s an incredible iron player,” said Schauffele, the Californian polyglot who played with Matsuyama on Saturday, who spoke Japanese with him and who rang in a 60-foot eagle putt on No. 15 just before Matsuyama’s six-footer. “This is a great course for him.”

“He’s generally pretty steady,” Leishman said. “He’s a great iron player.”

“So I’ve been playing with the lead the whole week, and obviously there’s been an hour of golf where Hideki has sort of moved out there in front,” Rose said. “All the guys chasing at 7 under par are all capable of that little run that Hideki has had, so it’s all up for grabs tomorrow.”

It all started Saturday with that dislikable drive on the right on No. 11, whereupon the horn sounded and Matsuyama spent the delay in his car playing games on his phone. He returned, smacked one to 19 feet and made that. He launched a beauty over Rae’s Creek to Amen Corner at No. 12, getting to 10 feet and making that. He actually three-putted No. 13 for par. He eagled No. 15 by hitting from 205 yards to six feet, birdied the par-3 No. 16 by landing at four feet, his precision now a marvel, and he looked beyond happy when he approached from 143 yards to 10 feet on No. 17, then made that.

Even on No. 18, he went into a fairway bunker and went out of there with a commanding shot over the green, which he knocked from 25 yards back to two feet.

It all came 10 years after Matsuyama debuted at Augusta, told of “chills” from the galleries applauding him on No. 18 and talked of planning to return to a damaged dormitory at Tohoku Fukushi University in Sendai, which had suffered a catastrophic earthquake and tsunami March 11, 2011.

He finished fifth at the 2015 Masters and said, “I would really like to become a Masters champion someday,” but then he actually had tapered off somewhat since 2017, as golf usually will demand. His most recent top-10 finishes in majors came that year — a tie for second at the U.S. Open and a tie for fifth at the PGA Championship — before 11 ensuing majors without such contention, his best finish a tie for 13th at the 2020 Masters in November. By Saturday, he had found his way back to the sublime.

— Chuck Culpepper

Hideki Matsuyama takes four-shot lead into the final round

12:22 a.m.
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Hideki Matsuyama became the first player from Japan to lead the Masters after any round and will take a four-shot advantage into Sunday after shooting a 7-under-par 65 on Saturday. The 29-year-old carded the first bogey-free round of the week and played 6 under over his final eight holes, all of them after a 77-minute weather delay. He’s 11 under for the tournament after his best round in his 10 appearances at Augusta.

“I spent the hour sitting in my car looking at my cellphone,” Matsuyama, who was tied for third at 5 under when play was suspended for rain, told CBS’s Jim Nantz through an interpreter.

By the end of the day, everyone was looking up at Matsuyama, including Englishman Justin Rose, who led after the first and second rounds. Rose shot even par and finished in a four-way tie for second with Xander Schauffele, Marc Leishman and Will Zalatoris at 7 under. The 24-year-old Zalatoris is looking to become the first rookie to win the Masters since Fuzzy Zoeller in 1979. Matsuyama has never won a major.

Corey Conners, who recorded the sixth hole-in-one on the sixth hole in Masters history, shot 4 under on the day to get to 6 under for the tournament, which is good for sixth place. Jordan Spieth (5 under), Brian Harman (4 under), Tony Finau (3 under) and Robert MacIntyre, Si Woo Kim and Bernd Wiesberger (all 2 under) round out the top 10. As Justin Ray of the 15th Club notes, the last 84 majors have been won by players who were among the top 10 after three rounds.

The forecast for Sunday calls for mostly cloudy skies, a high of 79 and a small chance of a passing shower. Here are the tee times for Sunday’s final round for the players under par:

1:00 Eastern — Cameron Smith (-1), Justin Thomas (-1)

1:20 — Viktor Hovland (-1), Ryan Palmer (-1)

1:30 — Henrik Stenson (-1), Stewart Cink (-1)

1:40 — Patrick Reed (-1), Kevin Na (-1)

1:50 — Si Woo Kim (-2), Bernd Wiesberger (-2)

2:00 — Tony Finau (-3), Robert MacIntyre (-2)

2:10 — Jordan Spieth (-5), Brian Harman (-4)

2:20 — Will Zalatoris (-7), Corey Conners (-6)

2:30 — Marc Leishman (-7), Justin Rose (-7)

2:40 — Hideki Matsuyama (-11), Xander Schauffele (-7)

Marc Leishman finishes his third round tied for second

11:46 p.m.
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Looking to break a four-way tie for second place, Marc Leishman just missed a birdie putt on No. 18 and tapped in for par to finish 7 under. The Australian, whose best finish at the Masters was fourth in 2013, had four birdies and two bogeys Saturday.

Xander Schauffele is in the clubhouse at 7 under. Justin Rose and Will Zalatoris, the day’s final pairing, are headed to the 18th green now.

Justin Rose drops into a tie for second place

11:26 p.m.
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Justin Rose did well to save par on Nos. 14 and 15, but he couldn’t overcome a tee shot into the bunker on the par-3 16th, ending up with a bogey that dropped him four shots back of leader Hideki Matsuyama. The Englishman, who led outright after each of the first two rounds, is still in fine position to make another run at his first green jacket. Rose, a runner-up at Augusta in 2015 and 2017, has three birdies and three bogeys on the day, leaving him 7 under.

Xander Schauffele is in the clubhouse at 7 under, the same as Marc Leishman and Masters rookie Will Zalatoris, who are still finishing their third rounds.

Hideki Matsuyama finishes bogey-free third round with three-shot lead

11:07 p.m.
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Hideki Matsuyama hit his first shot on the par-4 18th into a bunker and then blasted his second shot well past the green. He managed to save par after a beautiful third shot, completing the first bogey-free round of this year’s tournament and taking a three-shot lead into the clubhouse.

Matsuyama was 5 under and tied for third, two shots back of Justin Rose, when play was suspended for a weather delay. The break seemed to serve him well. After returning to the course at 5:15 p.m. Eastern, Matsuyama made four birdies and an eagle to storm into the lead. If the 29-year-old remains atop the leader board when play concludes Saturday, he will be the first player from Japan to hold the lead after any round of the Masters.

Bryson DeChambeau finishes third round 2 over

10:47 p.m.
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Bryson DeChambeau played well down the stretch Friday, with four birdies over his final six holes, but on Saturday he failed to pick up where he left off. The 27-year-old made a double bogey and two bogeys before his first birdie of the day on the par-5 eighth hole. He had another double bogey on the par-3 12th and finished 3 over for the day and 2 over for the tournament. DeChambeau has only hit 50 percent of the fairways through three rounds.

Hideki Matsuyama stays hot, extends lead to two strokes through 16

10:39 p.m.
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Hideki Matsuyama became the first player at this year’s tournament to get to 10 under par and extended his lead to two strokes in the process with a birdie at the par-3 16th. Matsuyama is 6-under par over his last 10 holes, a scorching stretch that has included four birdies and an eagle.

No player from Japan has ever led or shared the lead after any round in Masters history.

Hideki Matsuyama takes the lead with an eagle

10:30 p.m.
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After hitting his second shot on the par-5 15th within six feet of the hole, Hideki Matsuyama drained his ensuing eagle putt to move to 9 under and into sole possession of the lead. Justin Rose, who had just birdied the par-3 12th, is one stroke back.

Matsuyama’s eagle came moments after his playing partner, Xander Schauffele, made a long eagle putt at 15 to briefly move into a four-way tie for first. Schauffele and Will Zalatoris are tied for third at 7 under.

Justin Thomas makes triple bogey at No. 13, is fading from contention

10:23 p.m.
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Four under through two rounds, American Justin Thomas got off to a promising start with birdies on two of his first three holes, but he’s unraveled since making par on the par-5 eighth. The 27-year-old, coming off a fourth-place finish at the Masters in November, bogeyed the ninth and 11th after missing a short putt for par on the latter.

Thomas bounced back to birdie 11, but then made triple bogey on the par-5 13th. The meltdown started when he mishit his third shot from roughly 80 yards out into the creek. After taking a penalty stroke, Thomas three-putted and walked off the green 1 under and six shots back of the leaders.

Will Zalatoris grabs a share of the lead

10:06 p.m.
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With a 23-foot birdie putt on the par-4 10th hole, American Will Zalatoris joined Justin Rose and Hideki Matsuyama at 7 under and atop the leader board.

Matsuyama three-putted the par-5 13th and ended up with par, just missing a chance to move into sole possession of the lead. The greens have been noticeably slower since play resumed after a 77-minute rain delay. As CBS analyst Dottie Pepper said, “The fire has been taken out of the entire golf course.”

Jordan Spieth rebounds from double bogey with a pair of birdies

9:51 p.m.
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Jordan Spieth made a double bogey on the par-4 seventh hole and appeared to be in serious trouble after knocking his second shot on the par-5 eighth into the trees, but proceeded to make one of the more impressive birdies of the day. The magic continued for the 2015 Masters champion two holes later, when he chipped in from for birdie from 60 feet to move to 5 under and a share of fifth pace, two shots back of co-leaders Hideki Matsuyama and Justin Rose.

Hideki Matsuyama moves into a share of the lead with Justin Rose

9:38 p.m.
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With consecutive birdies on Nos. 11 and 12, Japan’s Hideki Matsuyama has jumped into a tie for the lead with Justin Rose at 7 under. The 29-year-old has three birdies on the day without a bogey.

Matsuyama, whose best finish at Augusta was fifth in 2015, is looking for his first major championship. He’s been in this position before; Matsuyama has entered the final round of a major in the top 10 eight times since 2015, the most of any player without winning one during that span.

Hideki Matsuyama moves into second after third round play resumes

9:26 p.m.
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Third round play has resumed after a 77-minute weather delay because of passing thunderstorms. Out of the break, Justin Thomas missed a short putt for par on No. 9, falling into a tie for sixth at 4 under after tapping in for bogey. Justin Rose two-putted on No. 7 for par to remain 7 under and then saw his lead briefly grow to two strokes when his playing partner, Will Zalatoris, made bogey.

Minutes later, Hideki Matsuyama birdied the par-4 third hole to move to 6 under and into sole possession of second place.

Zalatoris, Corey Conners and Marc Leishman are tied for third at 5 under.

After weather delay, play will resume at 5:15 p.m. Eastern

8:49 p.m.
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Five-time Masters champion Tiger Woods isn’t playing in this year’s tournament, but with Saturday’s third round in a weather delay, CBS Sports is airing a replay of his 2019 title. Forty-five minutes in to the delay, which began at 3:57 p.m. Eastern, the PGA Tour announced that play will resume at 5:15 p.m.

The showers that passed through Augusta should make the greens more forgiving after they played firm and fast through the first two days of the tournament.

Weather delay pauses third round with Justin Rose atop the leader board

8:09 p.m.
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Shortly before 4 p.m. Eastern, the air horn sounded at Augusta signaling a weather delay. Scattered thunderstorms and potentially strong winds are in the forecast until 7 p.m.

At 7 under, Justin Rose maintained a one-shot lead over Will Zalatoris when play was paused. Corey Conners, Hideki Matsuyama, Justin Thomas and Marc Leishman are tied for third, two shots back.

Before play was stopped, Jordan Spieth made an incredible shot out of the trees on the par-5 eighth hole to set up a birdie that moved him to 4 under.