Jin Sasaki has become one of Japan’s most exciting welterweight boxers, capturing attention with his explosive knockout power and impressive regional title defenses.
The 23-year-old fighter from Tokyo has built a solid reputation in the boxing world, though his recent world title challenge against Brian Norman Jr. ended in devastating fashion.
In this article, you will know Jin Sasaki’s net worth, career earnings, career overview, stats, relationship status, and more about this rising Japanese boxing star.
Jin Sasaki’s Biography
| Detail | Information |
|---|---|
| Full Name | Jin Sasaki (佐々木尽) |
| Date of Birth | July 28, 2001 |
| Age | 23 years old |
| Education | Hachioji Takuma High School |
| Nationality | Japanese |
| Height | 5’8½” (174 cm) |
| Weight | 147 lbs (67 kg) |
| Reach | 5’9¼” (176 cm) |
| Turned Pro | August 24, 2018 |
| Net Worth | $500,000 |
| Career Earnings | $350,000+ |
Early Career
Jin Sasaki’s boxing journey began during his first year of junior high school when he joined the Hachioji Nakaya Gym. Initially, he trained only two or three times per week, treating boxing as a casual activity rather than a serious pursuit.
However, everything changed when he entered Hachioji Takuma High School, where he made the pivotal decision to dedicate himself fully to the sport.
His amateur career was brief but provided valuable experience. Sasaki compiled a record of 1-3 as an amateur boxer, which might seem modest but served as the foundation for his professional development.
The limited success in amateur competition didn’t discourage him from pursuing boxing professionally. Instead, it motivated him to refine his skills and develop the devastating knockout power that would later become his trademark.
The transition from casual training to serious dedication marked a turning point in Sasaki’s life. His commitment to boxing intensified significantly during high school, where he began to understand the discipline and work ethic required to succeed in professional boxing.
This early period of development would prove crucial in shaping his aggressive fighting style and knockout ability that fans would come to appreciate.
Professional Career
Sasaki made his professional debut on August 24, 2018, at the iconic Korakuen Hall in Tokyo, where he defeated Tsuyoshi Kato by TKO in the second round. This impressive start set the tone for what would become a remarkable early professional career characterized by explosive knockouts and rapid progression through the ranks.
His rise through the professional ranks was meteoric. Sasaki quickly established himself as a force in the Japanese boxing scene, winning his first ten professional fights before suffering his first setback. The young fighter’s power was evident from the beginning, as he consistently finished opponents early in fights, building a reputation as one of Japan’s most exciting prospects.
A significant milestone came on December 26, 2020, when Sasaki captured the Japan Super Lightweight Youth Championship by defeating Aso Ishiwaki via TKO in the third round. He successfully defended this title against Kaiki Yuba, winning by knockout in the second round. However, his first major test came against Andy Hiraoka in October 2021, where he suffered his first professional loss by TKO in the eleventh round.
The defeat to Hiraoka proved to be a learning experience rather than a career setback. Sasaki rebounded by moving up to welterweight, where he found greater success. In January 2023, he captured the vacant WBO Asia-Pacific welterweight title by defeating Ryota Toyoshima with a first-round knockout. This victory marked the beginning of a successful title reign that included multiple defenses against quality opposition.
Jin Sasaki’s Net Worth Details
Jin Sasaki’s net worth in 2025 is estimated at $500,000.
Fight Purses
| Opponent | Purse | Year |
|---|---|---|
| Ryota Toyoshima | $75,000 | 2023 |
| Keita Obara | $75,000 | 2023 |
| Hiroto Hoshi | $100,000 | 2023 |
| Joe Noynay | $100,000 | 2024 |
| Qamil Balla | $100,000 | 2024 |
| Shoki Sakai | $150,000 | 2025 |
| Brian Norman Jr. | $275,000 | 2025 |
Career Earnings
| Year | Estimated Earnings |
|---|---|
| 2018-2019 | $25,000 |
| 2020-2021 | $50,000 |
| 2022 | $40,000 |
| 2023 | $250,000 |
| 2024 | $200,000 |
| 2025 | $425,000 |
Career Stats
| Statistic | Record |
|---|---|
| Total Fights | 22 |
| Wins | 19 |
| Losses | 2 |
| Draws | 1 |
| Knockouts | 17 |
| KO Percentage | 89% |
| Rounds Boxed | 92 |
| Average Fight Length | 4.2 rounds |
| Stance | Orthodox |
| Professional Debut | August 24, 2018 |
| Years Active | 7 years |
FAQs
1. What is Jin Sasaki’s current boxing record?
Jin Sasaki’s professional boxing record stands at 19 wins, 2 losses, and 1 draw. He has achieved 17 knockouts out of his 19 victories, giving him an impressive 89% knockout ratio. His most recent fight was a fifth-round knockout loss to Brian Norman Jr. for the WBO welterweight title.
2. How much money has Jin Sasaki earned from boxing?
Sasaki’s estimated career earnings exceed $350,000, with his net worth reaching approximately $500,000 in 2025. His highest single-fight purse was $275,000 for his world title challenge against Brian Norman Jr., while his previous biggest payday was $150,000 against Shoki Sakai.
3. What happened to Jin Sasaki after his fight with Brian Norman Jr.?
Sasaki suffered severe memory loss spanning six weeks following his knockout defeat to Brian Norman Jr. He was hospitalized immediately after the fight but released the same day. While CT scans showed no serious brain injury, he cannot remember the past six weeks, including the arrangement of the title fight.
4. Who trains Jin Sasaki and what titles has he won?
Sasaki trains under Shingo Inoue, who is the father and trainer of world champions Naoya and Takuma Inoue. He has won the WBO Asia-Pacific welterweight title, OPBF welterweight title, and previously held the Japan Super Lightweight Youth Championship during his career.
5. When did Jin Sasaki turn professional and what was his amateur record?
Sasaki turned professional on August 24, 2018, making his debut at Korakuen Hall in Tokyo with a second-round TKO victory. His amateur boxing record was 1-3, but he quickly found success as a professional, winning his first ten fights before suffering his first loss.
