# Jin Sasaki

Jin Sasaki (佐々木尽, Sasaki Jin, born July 28, 2001) is a Japanese professional boxer. He has held the WBO-Asia Pacific title since January 2023.

## Amateur career

He started boxing in his first year of junior high school and entered Hachioji Nakaya Gym, where he practiced two or three times a week, but after entering Hachioji Takuma High School, he devoted himself to boxing. Sasaki went 1-3 as an amateur boxer.

## Professional career

Sasaki had his debut fight on August 24, 2018, and won by TKO in the second round.
Sasaki advanced to the 2019 East Japan Lightweight Rookie of the Year final, but abstained from the East Japan Lightweight Rookie of the Year final due to being unable to make weight.
On December 26, 2020, at "Kakeru Holdings presents A-SIGN.BOXING" held at the Sumida Ward General Gymnasium, he fought Aso Ishiwaki for the Japan Super Lightweight Youth Championship, and won by TKO in the third round in 2 minutes and 50 seconds.
On July 17, 2021, he defended his title against Kaiki Yuba, the Japanese lightweight youth champion, at the Fujimori Gymnasium in Hachioji City, and won by KO in the second round in 2 minutes and 3 seconds, successfully retaining the belt for the first time. With this win, he qualified for the Japan Super Lightweight Championship.
On October 19, 2021, the Japanese and WBO Asia-Pacific Super Lightweight Championship match was held at Korakuen Hall, where he fought Andy Hiraoka, who was ranked 1st in Japan and 2nd in the WBO Asia-Pacific class. Sasaki was TKOed in the eleventh round in 1 minute 58 seconds. At the weigh-in the day before, Sasaki was overweight by 4 pounds and was disqualified from winning the title.
On October 25, 2021, the Japan Boxing Commission (JBC) suspended Sasaki's license for 6 months after he missed weight for the second time, and collected 20% of the fight purse as a fine.
On July 9, 2022, at Esforta Arena Hachioji, Sasaki fought Kotaro Sekine. The fight ended in a draw, where both fighters were knocked down.
On January 14, 2023, Sasaki fought for the vacant WBO Asia-Pacific welterweight title at Korakuen Hall, defeating champion Ryota Toyoshima by TKO in the first round in 1 minute and 56 seconds.
Sasaki is scheduled to face Shoki Sakai at Ariake Arena in Tokyo, Japan on January 24, 2025.

## Professional boxing record

| 21 fights | 19 wins | 1 loss |
| By knockout | 17 | 1 |
| By decision | 2 | 0 |
| Draws | 1 | 1 |
| No. | Result | Record | Opponent | Type | Round, time | Date | Location | Notes |
| 21 | Win | 19–1–1 | Shoki Sakai | UD | 12 | 24 Jan 2025 | Ariake Arena, Tokyo, Japan | Retained WBO Asia Pacific and OPBF welterweight titles |
| 20 | Win | 18–1–1 | Qamil Balla | TKO | 7 (12), 0:52 | 3 Sep 2024 | Ariake Arena, Tokyo, Japan | Retained WBO Asia Pacific and OPBF welterweight titles |
| 19 | Win | 17–1–1 | Joe Noynay | TKO | 5 (12), 0:43 | 16 May 2024 | Korakuen Hall, Tokyo, Japan | Retained WBO Asia Pacific welterweight title; Won vacant OPBF welterweight title |
| 18 | Win | 16–1–1 | Hiroto Hoshi | TKO | 11 (12), 1:44 | 8 Jul 2023 | Ésforta Arena Hachiōji, Hachioji, Japan | Retained WBO Asia Pacific welterweight title |
| 17 | Win | 15–1–1 | Keita Obara | TKO | 3 (12), 1:13 | 8 Apr 2023 | Ariake Arena, Tokyo, Japan | Retained WBO Asia Pacific welterweight title |
| 16 | Win | 14–1–1 | Ryota Toyoshima | TKO | 1 (12), 1:56 | 14 Jan 2023 | Korakuen Hall, Tokyo, Japan | Won vacant WBO Asia Pacific welterweight title |
| 15 | Win | 13–1–1 | Phatiphan Krungklang | TKO | 3 (8), 2:31 | 15 Nov 2022 | Korakuen Hall, Tokyo, Japan | |
| 14 | Draw | 12–1–1 | Kotaro Sekine | MD | 6 | 9 Jul 2022 | Ésforta Arena Hachiōji, Hachioji, Japan | |
| 13 | Win | 12–1 | Marcus Smith | TKO | 5 (8), 2:49 | 22 Apr 2022 | Korakuen Hall, Tokyo, Japan | |
| 12 | Loss | 11–1 | Andy Hiraoka | TKO | 11 (12), 1:58 | 19 Oct 2021 | Korakuen Hall, Tokyo, Japan | For vacant Japanese and vacant WBO Asia Pacific super lightweight titles |
| 11 | Win | 11–0 | Kaiki Yuba | KO | 2 (8), 2:03 | 17 Jul 2021 | Fujimori Gym, Hachioji, Japan | Retained Japanese Youth super lightweight title |
| 10 | Win | 10–0 | Aso Ishiwaki | TKO | 3 (8), 2:50 | 26 Dec 2020 | Sumida City Gymnasium, Tokyo, Japan | Won vacant Japanese Youth super lightweight title |
| 9 | Win | 9–0 | Tatsuya Miyazaki | TKO | 1 (6), 2:53 | 23 Nov 2020 | Shinjuku FACE, Tokyo, Japan | |
| 8 | Win | 8–0 | Shun Akaiwa | KO | 1 (6), 0:45 | 31 Aug 2020 | Shinjuku FACE, Tokyo, Japan | |
| 7 | Win | 7–0 | Tetsuya Kondo | TKO | 1 (4), 2:36 | 26 Sep 2019 | Korakuen Hall, Tokyo, Japan | |
| 6 | Win | 6–0 | Hikaru Sato | UD | 4 | 6 Aug 2019 | Korakuen Hall, Tokyo, Japan | |
| 5 | Win | 5–0 | Vageta Ishikawa | TKO | 3 (4), 1:36 | 11 Jun 2019 | Korakuen Hall, Tokyo, Japan | |
| 4 | Win | 4–0 | Sirisak Pimpasitta | KO | 2 (4), 0:56 | 21 Apr 2019 | Meenayothin Camp, Bangkok, Thailand | |
| 3 | Win | 3–0 | Naoyuki Tsumoto | TKO | 1 (4), 2:02 | 8 Feb 2019 | Korakuen Hall, Tokyo, Japan | |
| 2 | Win | 2–0 | Ryo Kasai | KO | 3 (4), 0:33 | 7 Nov 2018 | Korakuen Hall, Tokyo, Japan | |
| 1 | Win | 1–0 | Tsuyoshi Kato | TKO | 2 (4), 1:55 | 24 Aug 2018 | Korakuen Hall, Tokyo, Japan | |