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Flyweight boxing · most active 2010s

Kenji Kubo

5–4 · 9 recorded bouts · 2012–2015

Boxing record

5–4–1

Kenji Kubo finished 40% of 5 wins inside the distance — the 37th percentile for flyweight boxing, where the median is 47%. No reach is on record, so this page compares record rather than measurements.

2010win v Noldi Manakane, 2012, decisionwin v Taro Mochizuki, 2013, koloss v Yosuke Fujihara, 2013, decisionwin v Galih Susanto, 2013, decisionloss v Rey Megrino, 2013, koloss v Ryoichi Tamura, 2014, kowin v Kota Sato, 2014, decisionwin v Atsushi Hosogai, 2014, koloss v Ryohei Takahashi, 2015, decision
WON ABOVE·LOST BELOW BAR = STOPPAGE·BROKEN BAR = SUBMISSION·TICK = DECISION 2012–2015

SOURCE·Kenji Kubo — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-08

How this record is compiled

  1. Measurements come from the fighter's English Wikipedia infobox; the bout list is parsed from the results table on the same article, read on 2026-07-08. Boxing tables are read by header name and MMA records by the fixed column order of the MMA record template — two different parsers, because reading MMA rows as a boxing table returns a fighter's boxing record in place of their real one.
  2. A bout enters the ledger with whatever fields the source states: result, opponent, method, round, year. Any field the source leaves empty stays empty here. A date that cannot be established is left blank rather than inferred, and the bout is still counted.
  3. A no contest is counted and printed as a no contest. It is never folded into the wins, the losses or the draws, and it never disappears to make a total balance.
  4. Where the article's infobox total disagrees with its own results table, both figures are published and each is labelled with where it came from. Nothing is averaged and nothing is reconciled against a second database.
  5. Percentiles rank this fighter among the 168 flyweight boxing fighters in the dataset — the most specific group of at least 30 that this fighter belongs to.

Sources, exclusions and known limits →

Bout record

Every bout the article's own results table lists, in order. A dash is a field the source leaves empty — it is not a zero and it is not a guess.

Bout-by-bout recordAUG 2026
YearResultOpponentMethodRd
2015 L Ryohei Takahashi Decision8
2014 L Ryoichi Tamura KO/TKO8
2014 W Kota Sato Decision8
2014 W Atsushi Hosogai KO/TKO7
2013 W Taro Mochizuki KO/TKO3
2013 L Yosuke Fujihara Decision8
2013 W Galih Susanto Decision6
2013 L Rey Megrino KO/TKO3
2012 W Noldi Manakane Decision6

SOURCE·Kenji Kubo — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-08

What is on record

Measurements
Reachnot recorded
Height66.1″ (168 cm)
StanceOrthodox
DivisionFlyweight Boxing
Most active decade2010s — 9 of 9 dated bouts
CountryJapan

Wikipedia carries no reach figure for Kenji Kubo, so the reach-advantage comparison this site is built on cannot be computed. Everything below comes from the record instead.

win vs Noldi Manakane (2012)win vs Taro Mochizuki (2013)loss vs Yosuke Fujihara (2013)win vs Galih Susanto (2013)loss vs Rey Megrino (2013)loss vs Ryoichi Tamura (2014)win vs Kota Sato (2014)win vs Atsushi Hosogai (2014)loss vs Ryohei Takahashi (2015)
winlossdraw / NC2012–2015

Record

Boxing record

5–4

10 bouts on record

Finish rate

40%

of wins ended inside the distance — flyweight boxing median 47%, 37th percentile

By knockout: 2 (40%)By decision: 3 (60%)
  • By knockout 40%
  • By decision 60%

The career, bout by bout

9 recorded bouts from 2012 to 2015. Every incumbent shows this as a table you have to read; here it is as a shape you can see.

Career span

4y

2012–2015

Longest unbeaten run

2

without a loss — draws do not break it

Busiest year

2013

4 bouts

Recorded bouts

9

9 with a date

Standing questions

What this record does and does not say

What is Kenji Kubo's record?
5–4–1 in boxing. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 9 bouts individually.
Does a no contest change a record here?
No. A no contest is not a win, a loss or a draw, and it is never folded into one. It is counted and printed separately, so a 20–0 record with two no contests is shown as exactly that rather than as 22–0 or as 20–0 with the no contests dropped. The same applies to a bout overturned after the fact where the source records the change.
What happens when sources disagree about a fight?
This site publishes one source — the fighter's English Wikipedia article, read on the date printed under every table — and it does not silently reconcile that against anyone else's database. Where the article's own infobox total and its own results table disagree, both are shown and the page says which one each figure came from. Nothing is averaged, and no field is filled in from a second source to make a total balance.

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Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.