Flyweight · Japan

Naoko Yamaguchi

23-5-2 19 KO · 2001–2013

Updated · Sources: Wikidata, Wikipedia (ja), Japan Boxing Commission — 試合報告書, +2

Naoko Yamaguchi was a flyweight boxer from Japan, born Apr 25, 1978. Record 23-5-2 with 19 knockouts over 2001–2013. Naoko Yamaguchi last fought Naoko Fujioka on Nov 13, 2013 and lost by UD over 10 rounds.

Also: Наоко Ямагути · 山口直子 · Ямагути, Наоко
BornApr 25, 1978
Country🇯🇵 Japan
DebutOct 10, 2001
Career2001–2013
Rounds boxed134
KO share83%
Born inTsu, Japan
TitlesWBA title, 2nd defence 2013
Boxerbook rating1746 ± 176 · inactive since Nov 2013Why here ›
Confirmed bouts23 of 30 · 17 official

Career record

Record
23-5-2, 19 KOs · 2001–2013

Last result

L
Naoko Fujioka 🇯🇵
For WBA female super-flyweight title
UD 10/10 · Korakuen Hall, Korakuen Hall, 🇯🇵
2013-11-13 ›
official ★

The record

30 bouts, 2001–2013, newest first. Records under each bout are both boxers going in.

Bouts by source: Wikipedia (ja) · 30, Japan Boxing Commission — 試合報告書 · 17, English Wikipedia · 4, WBA Fights Master Scores · 2

L
Naoko Fujioka 🇯🇵
For WBA female super-flyweight title
UD 10/10 · Korakuen Hall, Korakuen Hall, 🇯🇵
Yamaguchi 23-4-2 · Fujioka 10-0-0
2013-11-13 ›
official ★
W
Chutaporn Pradissan
KO 1/8 · Korakuen Hall, 🇯🇵
Yamaguchi 22-4-2 · Pradissan —
2013-07-22 ›
official ★
W
Loredana Piazza
WBA title, 2nd defence
TKO 7/10 · Korakuen Hall, 🇯🇵
Yamaguchi 21-4-2 · Piazza —
2013-04-10 ›
official ★
W
Fudis Rodríguez
WBA title, 1st defence
UD 10/10 · Korakuen Hall, 🇯🇵
Yamaguchi 20-4-2 · Rodríguez —
2012-11-12 ›
official ★
W
Tsunami Tenkai 🇯🇵
Won WBA female super-flyweight title
UD 10/10 · Korakuen Hall, Korakuen Hall, 🇯🇵
Yamaguchi 19-4-2 · Tenkai 18-3-0
2012-07-09 ›
official ★
W
Kandi Sandoval
TKO 4/8 · Korakuen Hall, 🇯🇵
Yamaguchi 18-4-2 · Sandoval —
2012-04-04 ›
official ★
W
Ronarongnoi Sitsaitong
OPBF title, 4th defence, later vacated
TKO 1/10 · Korakuen Hall, 🇯🇵
Yamaguchi 17-4-2 · Sitsaitong —
2011-12-21 ›
official ★
W
Rientoon Ronrienkirakorate
OPBF title, 3rd defence
TKO 5/10 · Korakuen Hall, 🇯🇵
Yamaguchi 16-4-2 · Ronrienkirakorate —
2011-06-06 ›
official ★
L
Ana María Torres 🇲🇽
For WBC female super flyweight title
UD 10/10 · Arena Neza, Ciudad Nezahualcoyotl, 🇲🇽
Yamaguchi 16-3-2 · Torres 23-3-2
2011-01-22 ›
✓✓ two sources
W
Petsairun Looksaigondin
OPBF title, 2nd defence
TKO 3/10 · Korakuen Hall, 🇯🇵
Yamaguchi 15-3-2 · Looksaigondin —
2010-09-13 ›
official ★
W
Jomishin Gattnowor
OPBF title, 1st defence
TKO 3/10 · Korakuen Hall, 🇯🇵
Yamaguchi 14-3-2 · Gattnowor —
2010-05-18 ›
official ★
W
Rie Fujimoto 🇯🇵
OPBF women's super flyweight title
TKO 9/10 · Korakuen Hall, 🇯🇵
Yamaguchi 13-3-2 · Fujimoto 9-3-2
2010-02-20 ›
official ★
W
Onnart Gor Katchatgym
KO 2/8 · Korakuen Hall, 🇯🇵
Yamaguchi 12-3-2 · Katchatgym —
2009-12-02 ›
official ★
W
Marneige Bellano
TKO 4/6 · Korakuen Hall, 🇯🇵
Yamaguchi 11-3-2 · Bellano —
2009-10-12 ›
official ★
W
Miki Kikukawa 🇯🇵
TKO 2/6 · Korakuen Hall, 🇯🇵
Yamaguchi 10-3-2 · Kikukawa 10-8-1
2009-06-26 ›
official ★
L
Asami Shikasho 🇯🇵
TKO 5/6 · Korakuen Hall, 🇯🇵
Yamaguchi 10-2-2 · Shikasho 0-1-0
2008-10-13 ›
official ★
W
Pet Jinda Jinda Mani
TKO 2/4 · Korakuen Hall, 🇯🇵
Yamaguchi 9-2-2 · Mani —
2008-08-11 ›
official ★
W
Satrirek Paradonggym
KO 1/4 · Korakuen Hall, 🇯🇵
Yamaguchi 8-2-2 · Paradonggym —
2008-06-09 ›
official ★
L
Kazumi Izaki 🇯🇵
Japanese flyweight title
SD 8/8
Yamaguchi 8-1-2 · Izaki 2-2-2
2004-09-18 ›
✓✓ two sources
W
Rie Fujimoto 🇯🇵
TKO 2
Yamaguchi 7-1-2 · Fujimoto 2-0-1
2004-07-18 ›
✓✓ two sources
Show all 30 bouts
W
Toshie Suga 🇯🇵
KO 3
Yamaguchi 6-1-2 · Suga —
2004-04-04 ›
✓ one source
L
Sachiyo Shibata 🇯🇵
KO 3 · Tokyo, 🇯🇵
Yamaguchi 6-0-2 · Shibata 2-0-1
2003-09-21 ›
✓✓ two sources
W
不明
KO
Yamaguchi 5-0-2 · 不明 —
2003-03-29 ›
✓ one source
D
Kazumi Izaki 🇯🇵
Japanese flyweight title eliminator
MD 6/6
Yamaguchi 5-0-1 · Izaki 2-2-0
2003-03-14 ›
✓✓ two sources
W
Hye-rim Lee
KO 2
Yamaguchi 4-0-1 · Lee —
2003-01-24 ›
✓ one source
W
Misako Yamazaki
UD 6/6
Yamaguchi 3-0-1 · Yamazaki —
2002-12-18 ›
✓ one source
W
Kazumi Izaki 🇯🇵
MD 6/6
Yamaguchi 2-0-1 · Izaki 2-1-0
2002-09-07 ›
✓✓ two sources
W
Gypsy Taeko 🇯🇵
TKO 1
Yamaguchi 1-0-1 · Taeko —
2002-06-09 ›
✓ one source
D
Sachiko Onikura
MD 4/4
Yamaguchi 1-0-0 · Onikura —
2002-02-03 ›
✓ one source
W
Etsuyo Yagihashi
TKO 4
Yamaguchi 0-0-0 · Yagihashi —
2001-10-10 ›
✓ one source

Ratings now

Not in any current ranking.

World titles

No world title reigns recorded.

Facts

What is Naoko Yamaguchi's record?
Naoko Yamaguchi's professional record is 23-5-2 with 19 knockouts.
Who did Naoko Yamaguchi fight last?
Naoko Yamaguchi last fought Naoko Fujioka on Nov 13, 2013 and lost by UD over 10 rounds.

Sources

Boxerbook ID 1373 · permanent link boxerbook.com/id/1373. Wikidata (CC0), English Wikipedia (CC BY-SA). Last fetched: 2026-10-12. Spot a mistake? Every bout page has a link to report it.

Wikidata ↗