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Junki Sasaki (born 14 June 1991) is a retired Japanese kickboxer and boxer. As a professional kickboxer, he held the Krush Bantamweight title between 2019 and 2020.

Sasaki was ranked as a top ten flyweight (-56 kg) kickboxer by Combat Press from April 2021 until December 2022, and as a top ten super flyweight (-55 kg) kickboxer by Beyond Kick from October to December 2022.

Kickboxing career

Bantamweight career

Sasaki was scheduled to make his kickboxing against Yuta Hayashi at Krush 98. He won the fight by unanimous decision.

After a first-round TKO of Shuto Hagiwara at Krush 103, Sasaki was scheduled to fight Koki Tomimura for the Krush Bantamweight title at Krush 107. Sasaki beat Tomimura by unanimous decision.

Sasaki was scheduled to make his first title defense against Samvel Babayan at Krush 112. The fight was later cancelled, as Babayan was unable to fly to Japan due to restrictions imposed to combat the COVID-19 pandemic.

Super Bantamweight career

For his next fight, Sasaki moved up in weight to super bantamweight, and was scheduled to fight Ryuto at Krush 116. He won the fight by majority decision.

Sasaki was scheduled to make his K-1 debut against another undefeated kickboxer in Riamu at K-1 World GP 2020 Winter's Crucial Bout. He won the fight by unanimous decision.

Sasaki was scheduled to fight Rat EiwaSportsGym at a 56 kg catchweight bout. Sasaki won the fight by majority decision. During the post-fight conference, Sasaki stated he was considering retirement. K-1 later changed the majority decision win to a unanimous decision win for Sasaki.

Sasaki was scheduled to take part in the 2022 K-1 Super Bantamweight World Grand Prix, which was held at K-1 World GP 2022 Japan on February 27, 2022. He faced Sho Uchida in the tournament quarterfinals. The fight was ruled a majority decision draw after the first three rounds, with one judge scoring the fight 30–29 for Uchida, while the remaining two judges scored it an even 30–30 draw. Sasaki was awarded the unanimous decision after an extension round was fought. He announced his retirement from professional competition on December 20, 2022.

Championships and accomplishments

• 2019 Krush Bantamweight (53 kg) Champion

Kickboxing record

Professional Kickboxing Record

7 Wins (1 (T)KO's), 1 Loss, 0 Draw, 0 No Contest
Date	Result	Opponent	Event	Location	Method	Round	Time
2022-02-27	Loss	Masashi Kumura	K-1 World GP 2022 Japan, Super Bantamweight World GP Semi Finals	Tokyo, Japan	TKO (2 Knockdowns/Punches)	1	1:37
2022-02-27	Win	Sho Uchida	K-1 World GP 2022 Japan, Super Bantamweight World GP Quarter Finals	Tokyo, Japan	Ext.R Decision (Unanimous)	4	3:00
2021-05-23	Win	Rat EiwaSportsGym	K-1 World GP 2021: Japan Bantamweight Tournament	Tokyo, Japan	Decision (Unanimous)	3	3:00
2020-12-12	Win	Riamu	K-1 World GP 2020 Winter's Crucial Bout	Tokyo, Japan	Decision (Unanimous)	3	3:00
2020-08-29	Win	Ryuto	Krush 116	Tokyo, Japan	Decision (Majority)	3	3:00
2019-11-08	Win	Koki	Krush 107	Tokyo, Japan	Decision (Unanimous)	3	3:00
Wins the Krush Bantamweight -53 kg title.
2019-07-21	Win	Shuto Hagiwara	Krush 103	Tokyo, Japan	TKO (Three knockdowns)	1	2:51
2019-02-16	Win	Yuta Hayashi	Krush 98	Tokyo, Japan	Decision (Unanimous)	3	3:00
Legend:   Win   Loss   Draw/No contest   Notes

Boxing record

No.	Result	Record	Opponent	Type	Round, time	Date	Location	Notes
23	Loss	19–4	Ryo Sagawa	SD	8	2 June 2018	Korakuen Hall, Tokyo, Japan
22	Win	19–3	Ronnie Campos	UD	8	2 December 2017	Korakuen Hall, Tokyo, Japan
21	Win	18–3	Sang Hoo Gil	TKO	5 (8)	25 June 2017	Susukino Mars, Sapporo, Hokkaido, Japan
20	Win	17–3	Yudai Tamagawa	UD	8	12 December 2016	Korakuen Hall, Tokyo, Japan
19	Win	16–3	Reiko Sugiyama	UD	8	2 July 2016	Korakuen Hall, Tokyo, Japan
18	Win	15–3	Panupong Anowan	KO	2 (8)	2 July 2016	Korakuen Hall, Tokyo, Japan
17	Win	14–3	Yuki Kumazoe	UD	8	3 October 2015	Korakuen Hall, Tokyo, Japan
16	Loss	13–3	Ryo Takenaka	UD	8	13 April 2015	Korakuen Hall, Tokyo, Japan
15	Win	13–2	Shingo Kusano	UD	8	14 October 2014	Korakuen Hall, Tokyo, Japan
14	Win	12–2	Kohei Maruoka	UD	8	7 June 2014	Korakuen Hall, Tokyo, Japan
13	Loss	11–2	Ryosei Arai	UD	8	1 June 2013	Korakuen Hall, Tokyo, Japan
12	Win	11–1	Shingo Nagahama	TKO	6 (8)	2 February 2013	Korakuen Hall, Tokyo, Japan
11	Win	10–1	Yoshinori Koto	TKO	8 (8)	4 August 2012	Korakuen Hall, Tokyo, Japan
10	Win	9–1	Shinya Takahashi	UD	8	4 February 2012	Korakuen Hall, Tokyo, Japan
9	Win	8–1	Ryoji Okahata	MD	6	6 November 2011	Yoyogi #2 Gymnasium, Yoyogi, Japan
8	Win	7–1	Atsuro Ito	TKO	2 (6)	4 June 2011	Korakuen Hall, Tokyo, Japan
7	Win	6–1	Isao Sasaki	TKO	2 (6)	5 March 2011	Korakuen Hall, Tokyo, Japan
6	Win	5–1	Yusuke Sekido	UD	4	6 November 2010	Korakuen Hall, Tokyo, Japan
5	Loss	4–1	Yuki Iwasaki	SD	4	21 May 2010	Korakuen Hall, Tokyo, Japan
4	Win	4–0	Muneaki Hasumi	UD	4	31 March 2010	Korakuen Hall, Tokyo, Japan
3	Win	3–0	Hiroyuki Sagehashi	UD	4	5 December 2009	Korakuen Hall, Tokyo, Japan
2	Win	2–0	Naoto Kawashita	UD	4	14 July 2009	Korakuen Hall, Tokyo, Japan
1	Win	1–0	Hideshi Natsui	TKO	4 (4)	21 February 2009	Korakuen Hall, Tokyo, Japan

See also

• List of male kickboxers

References

1. "佐々木 洵樹 /ササキ ジュンキ/Sasaki Junki". k-1.co.jp. Retrieved 8 April 2021.
2. Aittama, Zach. "Combat Press Kickboxing Rankings: April 2021". combatpress.com. Retrieved 20 December 2022.
3. Kuhl, Dan. "Combat Press Kickboxing Rankings: December 2022". combatpress.com. Retrieved 20 December 2022.
4. "Rankings October 2022". beyondkick.com. Retrieved 20 December 2022.
5. "Rankings December 2022". beyondkick.com. Retrieved 20 December 2022.
6. "Krush 2.16 後楽園ホール：元プロボクシング東洋太平洋ランカーの佐々木洵樹がキックデビュー。KRESTの林勇汰と対戦". boutreview.com. 26 December 2018. Retrieved 8 April 2021.
7. "元プロボクサー・佐々木洵樹、Krush軽量級戦線を盛り上げていく！「古川会長から『キックボクサーとしてやれ』と言われていた。バンタム級でもスーパー・バンタム級でもチャンスがあれば戦う」". k-1.co.jp. Retrieved 8 April 2021.
8. "K-1 KRUSH 11.8 後楽園ホール：佐々木洵樹「自分を拾ってくれたPOWER OF DREAMと古川会長にベルトを獲って恩返ししたい」". boutreview.com. 16 October 2019. Retrieved 8 April 2021.
9. "【K-1 KRUSH】元ボクサーの佐々木洵樹が転向3戦目で王座に就く、朝久泰央が圧倒的な強さ見せつけ王座挑戦アピール". gonkaku.jp. Retrieved 8 April 2021.
10. "【Krush】3.28 佐々木洵樹の初防衛戦が中止に、挑戦者ババヤンが来日できず". efight.jp. 25 March 2020. Retrieved 8 April 2021.
11. "Krush 8.29 後楽園ホール：海斗「僕みたいな奴でもがんばったらここまで行けんねんぞというところを見せたい」". boutreview.com. 22 August 2020. Retrieved 8 April 2021.
12. "佐々木洵樹選手の男気にリスペクト". blogtag.ameba.jp. Retrieved 8 April 2021.
13. "【K-1】4戦無敗の佐々木洵樹と6戦無敗の璃明武が対決、共に「黒星を付けてやる」". gonkaku.jp. Retrieved 8 April 2021.
14. "【K-1】佐々木洵樹が無敗更新、璃明武は初黒星". efight.jp. 13 December 2020. Retrieved 8 April 2021.
15. "【K-1】ボクシングvsムエタイ、佐々木洵樹がゴンナパーに勝利したラットと対戦「無敗記録はずっと更新していきたい」". news.yahoo.co.jp. Archived from the original on 21 April 2021. Retrieved 21 April 2021.
16. "【K-1】佐々木洵樹、ムエタイ戦士に判定勝利も不完全燃焼". efight.jp. 30 May 2021. Retrieved 30 May 2021.
17. "【K-1】プロボクサーから転向し、6戦無敗の佐々木洵樹が引退を示唆「自分としてはこれで終わりかなと思ってます」". gonkaku.jp. Retrieved 31 May 2021.
18. "「K-1 WORLD GP」5.30横浜 佐々木洵樹vsラット・エイワスポーツジムについてのお知らせ". k-1.co.jp. Retrieved 4 June 2021.
19. "K―1 WORLD GP 2022 JAPAN 第3代スーパーバンタム級王座決定Tに佐々木洵樹ら出場". sponichi.co.jp. Retrieved 21 December 2021.
20. "【K-1】佐々木洵樹「今までになかった熱い気持ちがフツフツと沸いている」vs内田晶「自分がジョーカー的存在だと思っている」". news.yahoo.co.jp. Retrieved 11 February 2022.
21. "【K-1】佐々木洵樹、ダークホース・内田晶に苦戦も延長で振り切る！玖村将史の待つ準決勝へ". efight.jp. 27 February 2022. Retrieved 7 March 2022.
22. "佐々木洵樹". twitter.com. Retrieved 20 December 2022.
23. "佐々木洵樹が晃貴破りバンタム級王座獲得【11・8 K-1 KRUSH】". tokyoheadline.com. 8 November 2019. Retrieved 8 April 2021.

• Living people
• 1991 births
• Japanese male kickboxers
• Japanese male boxers
• Flyweight kickboxers
• Sportspeople from Asahikawa
• Martial artists from Hokkaido