A motorcycle race where top-level domestic riders compete to become the best in Japan!

In the All Japan Road Race Championship, races are divided into multiple classes based on factors such as engine displacement, engine type, and the extent of allowable modifications.

Among these, the top-tier class called "JSB1000" attracts the most attention.

The machines used in JSB1000 are racing bikes based on high-performance sports bikes around 1000cc that are commercially available, improved within the scope of the regulations.
In other words, these are not race-exclusive vehicles built from scratch, but machines built on commercially available bikes, with manufacturers and teams refining their technology to compete.

In addition to the overwhelming acceleration produced by the large-displacement engine, the highlights include braking sharply at the end of the long straight and then leaning the bike dramatically to race through the corners.

If you’re unsure just how impressive 1000cc is, there’s no need to overthink it.

By watching the sound and speed of the machines racing right before your eyes, as well as the riders' dynamic body movements, you will be able to experience why this class is called the premier category.

Final races will also be held on Saturday. Both days are the real deal.

At the 2026 Motegi event, the two categories, JSB1000 and ST1000, will each hold their finals on Saturday and Sunday, making it a two-race format.
Therefore, Saturday is also an important race that affects the series standings.

Riders and teams who did not perform well in Saturday’s race may adjust their machines and riding styles to make a comeback on Sunday, while riders who won on Saturday may aim for back-to-back victories riding that momentum.

Watching for two days allows you to enjoy not just seeing the same race twice, but also the "continuation of the story"—how the challenges and position battles that emerged on Saturday change on Sunday.

Even if you only watch on Sunday, checking Saturday’s results in advance will greatly deepen your understanding of the race.

Focus not only on "which bike is the fastest" but also on "who will stop the champion"!

In the All Japan Road Race Championship, teams using machines from leading Japanese manufacturers such as Honda, Yamaha, Kawasaki, and SUZUKI, as well as overseas manufacturers like Ducati and BMW, also participate.

In the premier JSB1000 class, at the 2026 season opener "Motegi 2&4 Race," rider Ryo Mizuno, who races for SDG DUCATI Team KAGAYAMA, took the victory.

Furthermore, as of the end of Round 3, they have achieved five consecutive wins since the season opener and are showing overwhelming momentum by leading the series rankings.

Meanwhile, chasing after Mizuno is a group of top riders who have built achievements both domestically and internationally, including Tetta Nagashima, Kota Nozane, and Yuki Kunii, all of whom have experience competing in the World Championship.

Additionally, Katsuyuki Nakasuga of the YAMAHA FACTORY RACING TEAM, who has led the domestic premier class for many years, continues to compete at the top with the speed and consistency he has cultivated as a champion.

Just knowing the dynamic of how Nakatsuka and the Honda team will try to stop the momentum of rider Mizuno in the 2026 season will make it easier to follow the races.

Let’s witness the legendary rider who has supported the top domestic class in person.

Katsuyuki Nakasuga is a rider who represents the All Japan Road Race Championship, having won the JSB1000 annual championship 13 times in total.

Even after turning 40, he has continued to compete at the forefront, serving as a major obstacle for younger riders and leading the series for many years.

Rider Nakatsuka has announced that he will retire from active competition at the end of 2026.

This year's "Superbike Race in Motegi" will be Nakatsuka's last race at Motegi in the All Japan Road Race Championship. It is a rare opportunity to see the performance of a rider who has shaped the history of domestic motorcycle racing in person.

Only one person rides the bike. But the race is fought by the entire team.

The rider stands out during the race, but the outcome is not decided by the rider’s skill alone.

Before the race starts, the team staff carefully adjust the machine while checking the temperature, track conditions, tire wear, and the rider’s feedback.

"I want it to turn more easily"
"I want better acceleration"
"I want the tires to last until the end"
◈ The mechanics and engineers translate such rider requests into machine adjustments.

Even slight differences in adjustments can affect lap times and performance in the latter part of the race.

When watching a race, pay attention not only to the riders but also to the staff who send the machines off before the start and the team watching over the race from the pit.

Seeing the riders and the team celebrate together after the finish shows that racing is "an individual sport yet also a team sport."

The distance between the bike and the ground is astonishingly small.

For those watching a bike race for the first time, the cornering is definitely something to pay attention to.

When entering a curve, the rider shifts their body significantly to the inside of the bike, leaning the machine so much that their knees and elbows almost touch the ground.

At first glance, the posture looks like the rider might just fall over, but they use the tiny contact patch of the tires to maintain speed and power through the corner.

Furthermore, at the corner's entrance, they decelerate sharply from speeds approaching 300 km/h. They delicately control the movements of the front and rear tires as well as their body to smoothly transition into the next acceleration.

The recommended way to watch is to compare multiple riders at the same corner.
The point where they start braking, how they move their bodies, and the timing of when they straighten the bike and begin to accelerate all vary slightly from rider to rider.

Even if you don’t notice the differences at first, after watching several riders, you’ll naturally start to see their individual styles, like "this rider brakes late" or "this rider seems to accelerate quickly out of the corner."

Even if you don’t know their name, finding one rider who catches your interest will make the race more exciting!

You don’t need to remember all the riders from the start.
It’s fine to be drawn by anything—such as the color or manufacturer of the machine, the race number, or the personality you get from reading the rider’s introduction.

"Mizuno from SDG DUCATI Team KAGAYAMA"
"Nakasuga competing in his retirement season"
"Nagashima and Nosane, who have experience in the World Championship"
◈ Even remembering them this way is enough to fully enjoy the race.

Once you choose one rider to support, you start to feel the race changes—such as moving up in position, closing the gap to the rider ahead, or attempting an overtake—as if they were your own.

• 
  Katsuyuki Nakasuga

  YAMAHA FACTORY RACING TEAM

  He is a Rider who has led the title battles for many years in the premier class of the All Japan Road Race, JSB1000, and represents the series. He has won the annual championship 13 times in total in JSB1000, and claimed the throne with a perfect winning record in 2021 and 2022.
  
  In 2026, competing as the JSB1000 champion, he continues to race with the YAMAHA FACTORY RACING TEAM. As of the end of Round 3, he is ranked 3rd and secured pole position at Autopolis. In the finals, he finished on the podium in 2nd place in both Race 1 and Race 2, demonstrating the speed and consistency befitting a champion.
  
  On the other hand, he has announced his retirement at the end of 2026, making the summer Motegi race an important event to witness his performance in his final season.

• 
  Suzuno Ryō

  DUCATI Team KAGAYAMA

  He is a Rider who has recently been competing at the top in JSB1000, combining speed and aggressiveness. Despite being affected by injuries in 2025, he finished the season ranked 2nd overall, and in 2026 he has been accumulating victories since the season opener.
  
  This season, as of the end of Round 3, he has achieved five consecutive wins from the start and is leading the rankings. At the August Motegi event, a major point of focus will be whether he can extend his lead toward winning the title with Ducati and becoming his first JSB1000 champion.

• 
  Tetta Nagashima

  DUNLOP Racing Team with YAHAGI

  A Rider who combines the perspective gained from experience in the World Championship with practical skills in the top domestic category. In addition to competing in Moto2™, he has also raced in the premier class of MotoGP™, accumulating knowledge gained from world-class environments throughout his career.
  
  As of the end of Round 3 in the 2026 season, he is ranked 2nd. Competing in the top domestic class on DUNLOP tires, he has consistently placed high from the early part of the season and secured 3rd place podiums in both Race 1 and Race 2 at the Autopolis event. At the August Motegi event, he is attracting attention as a contender chasing Ryō Mizuno, who is leading the overall rankings.

• 
  Nozane Kouta

  Astemo Pro Honda SI Racing

  A Rider who has experienced the pinnacle in the top domestic category and has also competed on the world stage. In addition to being the All Japan JSB1000 Champion, he has participated in WorldSBK, served as a substitute Rider in MotoGP™, and competed in Moto2™, possessing a diverse range of skills honed in different environments.
  
  As of the end of Round 3 in the 2026 season, he is ranked 4th overall. At the August Motegi event, the key point will be how far he can advance beyond the battle for the podium and contend for the victory.

• 
  Yuki Kunii

  SDG Team HARC-PRO.Honda

  This Rider has the experience of achieving results domestically before challenging the world stage and then returning to the highest level in Japan. In addition to winning the ST1000 title domestically, he became the series champion in the 2024 FIM ASIA ROAD RACING CHAMPIONSHIP (ARRC) ASB1000 class. In 2025, he competed in Moto2™, gaining experience through actual racing on the international stage.
  
  2026 marks a full-fledged season competing in JSB1000, and as of the end of Round 3, the rider is ranked 5th. While deepening their understanding of the JSB1000 machine, the focus at the August Motegi event will be how close they can get to the podium battle and even the fight for victory.

• 
  Takuya Tsuda

  Team SUZUKI CN CHALLENGE

  This Rider has the experience of continuously competing at the highest level in Japan and the adaptability built up through many years of actual racing. They also have experience participating in MotoGP™ overseas, gaining practical experience in the world’s top racing environment.
  
  In recent years, he has been involved as a Rider in the "CN CHALLENGE" project using SUZUKI's sustainable fuel, continuing to take on new challenges at race sites.
  
  In 2026, he is also competing with Team SUZUKI CN CHALLENGE and is ranked 10th after Round 3. Based on the data and experience gained in the first half of the season, he aims to secure top points.

Turn your smartphone into your own personal commentary seat!

At large circuits, sometimes you can’t tell what kind of battles the machines passing right in front of you are having on the opposite side of the course.

To grasp the overall race situation, it’s useful to utilize the following three tools.

■ RACE NOW (Live Timing App)

A real-time race leaderboard viewable on your smartphone.
You can check the current positions, lap times, and time gaps with the riders ahead and behind.
When you wonder, "What position is the rider I'm supporting now?" checking this makes it easier to follow the flow of the race.

RACE NOW is here

■ Moto Battle LIVE

This is the official live broadcast showing the entire circuit.
You can check on battles in corners not visible from the stands, crashes, overtakes, and more through the video.
We recommend enjoying the race live right in front of you while also checking the overall progress on your smartphone.

Here is Moto Battle LIVE

■ On-site FM Commentary

This is the on-site radio commentary that informs you of the race situation through your ears.
You can listen to the on-site commentary on FM 80.9 MHz.
If you bring a radio with earphones, you can keep track of the race situation even while moving between spectator seats or eating.