Where can I watch the fight video?

Watch the embedded video near the beginning of this article for the Kiho and Mako Yamada championship story and rematch.

Kiho and Mako Yamada in the KNOCK OUT-BLACK Women's Atomweight Championship rivalry.

Kiho vs Mako Yamada: The Controversial Title Fight That Changed Everything

A championship should be the moment every fighter dreams of: years of training, sacrifice, and hard rounds finally rewarded with a belt. But for Japanese kickboxer Kiho, winning the KNOCK OUT-BLACK Women's Atomweight Championship became the beginning of one of the most talked-about controversies in the promotion's recent history.

Her first fight with Mako Yamada ended with Kiho being declared the winner after an extra round. Instead of bringing universal celebration, the decision triggered debate among fans and drew unusually strong criticism from KNOCK OUT-BLACK representative Genki Yamaguchi. The promotion's leadership believed the result did not reflect the aggressive fighting style its rules were intended to reward.

Then came the rematch. With the championship at stake once again, Yamada had an opportunity to settle the dispute inside the ring. The result would change the division's immediate future and turn a controversial decision into a rivalry with a clear second chapter.

Watch Kiho vs Mako Yamada

The video below follows the dramatic story of Kiho and Mako Yamada, from the disputed championship decision to the rematch that ultimately changed the title picture.

Watch the fight story and decide for yourself: Was the first result fair, or did Yamada deserve the victory from the beginning?

How Kiho Reached the Championship Fight

Kiho had been building momentum in Japanese kickboxing before the title showdown. After competing in the K-1 scene earlier in her career, she moved to KNOCK OUT and put together a strong run of performances. Her results helped establish her as a fighter capable of competing for a championship.

Standing opposite her was Mako Yamada, a highly experienced striker with an accomplished combat-sports background. Yamada had won titles in kickboxing and professional boxing, including the WBO Women's World Mini Flyweight Championship. Her boxing experience gave her a sharp punching game, while her willingness to move forward made her a difficult opponent to control.

The matchup was compelling because the fighters brought different strengths into the ring. Kiho used distance, kicks, and counterattacks, while Yamada sought to close the gap and apply pressure with her hands.

With the KNOCK OUT-BLACK Women's Atomweight title on the line, their first meeting had consequences far beyond a single win or loss.

The First Fight: A Championship Decided After an Extra Round

The first title fight took place at KNOCK OUT.57 in Tokyo on September 23, 2025. The contest was scheduled for three rounds, but the judges could not produce a unanimous winner. The scorecards were split, sending the fighters into an extra round.

Yamada pressed forward and tried to make her punching attacks count. Kiho answered with kicks and counters, working to manage the distance and interrupt Yamada's advance. Both fighters had moments, and the contest became a difficult one to score.

After the extra round, Kiho was awarded the victory by a 2–1 decision. She became the new KNOCK OUT-BLACK Women's Atomweight Champion.

On paper, it was a career-defining achievement. Yet the decision immediately became controversial.

Some observers believed Yamada's forward pressure and punching attacks had been more effective. Others viewed the fight through a different scoring perspective, emphasizing the kicks and distance control used by Kiho. The disagreement was not simply about who appeared busier; it was about how the promotion's scoring priorities should be applied.

Why the Decision Sparked So Much Controversy

The controversy grew when Genki Yamaguchi, the promotion's representative, publicly disagreed with the judges' verdict. He said he believed Yamada had done enough to win both the regulation rounds and the extra round.

Yamaguchi argued that KNOCK OUT's judging should place particular importance on a fighter's willingness to attack and seek a finish. In his view, the scoring did not properly reflect the promotion's emphasis on aggressive, damage-oriented fighting.

His comments made the situation unusual. Promoters do not commonly criticize a championship result so directly immediately after a fighter has been awarded the belt.

However, the criticism was not an official reversal of the decision. Kiho remained the winner of the first fight, and the judges' ruling was not overturned. The promotion's challenge did not change the recorded result.

That distinction matters. The controversy raised questions about judging standards, but it did not establish that Kiho had deliberately done anything wrong. She had competed under the rules and received the decision announced by the officials.

Kiho's Reaction: A Champion Without a Clear Celebration

For Kiho, the victory was emotionally complicated. Rather than enjoying the moment without reservation, she showed visible disappointment and acknowledged that the performance had not given her the sense of a decisive win.

She expressed a desire to face Yamada again, recognizing that the first fight had left questions for the fighters, the promotion, and the audience. The situation placed her in an unusual position: she held the championship, but a large part of the conversation focused on whether the result had been deserved.

That is a difficult burden for any athlete. A fighter can only compete under the rules and do what the judges ask them to do. Once a decision is announced, the athlete does not control how the officials interpret the action.

Kiho's willingness to accept a rematch gave the rivalry a sporting solution. Rather than allowing the argument to remain unresolved, both fighters would have another opportunity to determine the championship in the ring.

The Rematch: Mako Yamada Gets Another Chance

The promotion arranged a direct rematch for December 30, 2025, at KNOCK OUT.60. This time, the stakes were especially high for both women.

For Kiho, it was a chance to defend the belt and show that her first victory was not a disputed moment but the start of a legitimate championship reign. For Yamada, it was an opportunity to turn her frustration into a clear result and claim the title she believed she should have won.

The rematch was not just another bout on the card. It carried the weight of the first decision, the public debate over judging, and the expectations created by the promotion's response.

Yamada again brought pressure and punching attacks, while Kiho worked to use movement and kicks to manage the distance. With the championship on the line, every exchange carried extra significance.

This time, the judges awarded the victory to Yamada by a 2–0 decision, with one scorecard even. Yamada became the new KNOCK OUT-BLACK Women's Atomweight Champion, avenging the earlier defeat and bringing the immediate controversy to a dramatic conclusion.

The rematch did not erase the debate over the first fight. Instead, it gave the rivalry a second official result—and a new champion.

What Happened After the Rivalry?

The story did not end with Yamada's victory over Kiho. Championship divisions continue to move, and a belt is never guaranteed to remain with one fighter.

In September 2026, Yamada defended the title against Koto Hiraoka at KNOCK OUT.68. Hiraoka won by decision and took the championship, ending Yamada's reign as titleholder.

That later result adds another chapter to the division's history. The Kiho–Yamada rivalry was a major moment in the title's recent timeline, but it was not the final word on who would become champion.

For Kiho, the loss in the rematch did not end her career or remove the possibility of another title opportunity. For Yamada, the win established her as champion before the next challenger changed the division again.

What This Controversy Reveals About Combat Sports Judging

The Kiho–Yamada rivalry illustrates why judging can become one of the most contentious parts of combat sports. Two people can watch the same fight and come away with different impressions because they prioritize different elements: effective strikes, damage, pressure, control of distance, or forward movement.

A fighter moving forward is not automatically winning. At the same time, a fighter who lands kicks while moving backward is not automatically winning either. The important question is how effectively each competitor attacks, defends, creates meaningful impact, and applies the scoring criteria established for that ruleset.

Promotions also have a responsibility to make their criteria clear to judges, fighters, and fans. When a promotion's public explanation of what it values appears to conflict with the result, confusion and criticism are likely to follow.

The lesson is not that every close decision is corrupt or that a controversial result proves misconduct. It is that consistent standards and transparent explanations are essential if fans are expected to trust championship outcomes.

Was Kiho Unfairly Judged, or Did Yamada Deserve the Title?

The first fight produced a legitimate official winner, but it also exposed a disagreement over how the contest should have been scored. Kiho earned the decision that night, and the result was not overturned. Yamada then won the rematch and took the championship, giving her supporters a result they could point to inside the ring.

There is room to debate the first scorecards without dismissing either fighter's effort. Kiho had to compete under the judges' criteria, while Yamada had to return and fight again after a result she and many observers disputed.

Ultimately, the most important part of this story is not simply who was right in the first fight. It is how a controversial decision created a rematch that changed the title picture—and how both athletes continued competing after the spotlight moved on.

What do you think? Did Kiho deserve the first decision, or should Mako Yamada have been crowned champion from the start? Share your view respectfully in the comments.

Frequently Asked Questions

Who won the first fight between Kiho and Mako Yamada?

Kiho won the first championship bout by a 2–1 decision after an extra round on September 23, 2025.

Why was Kiho's championship victory controversial?

KNOCK OUT representative Genki Yamaguchi publicly disagreed with the result, arguing that Yamada's performance better reflected the promotion's emphasis on aggressive, finish-seeking attacks.

Was the first decision officially overturned?

No. The original decision stood, and Kiho was recorded as the winner of the first fight.

Who won the Kiho vs Mako Yamada rematch?

Mako Yamada won the rematch by a 2–0 decision on December 30, 2025, with one judge scoring the bout even. She became the new KNOCK OUT-BLACK Women's Atomweight Champion.