What is Naoyuki Kotani 小谷直之's record?

37–18 in MMA. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 60 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.

Naoyuki Kotani 小谷直之 — record, reach and career in context

MMA record

37–18

Naoyuki Kotani 小谷直之 has a reach of 66.5″ against a height of 68″ — a reach advantage of -2.2%, unusually short for lightweight MMA and the 3rd percentile of the 161 compared here.

WON ABOVE·LOST BELOW BAR = STOPPAGE·BROKEN BAR = SUBMISSION·TICK = DECISION 2000–2023

SOURCE·Naoyuki Kotani — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2024-11-11

How this record is compiled

Measurements come from the fighter's English Wikipedia infobox; the bout list is parsed from the results table on the same article, read on 2024-11-11. 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.
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.
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.
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.
Percentiles rank this fighter among the 161 lightweight MMA fighters in the dataset — the most specific group of at least 30 that this fighter belongs to.

reach advantage = (reach − height) ÷ height × 100

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
Year	Result	Opponent	Method	Rd
2023	L	Shin Haraguchi	KO/TKO	1
2020	W	Yutaka Ueda	Decision	2
2019	L	Koshi Matsumoto	KO/TKO	4
2018	W	Shutaro Debana	Submission	2
2018	W	Akihito Mamiya	KO/TKO	1
2017	L	Marif Piraev	Decision	3
2017	L	Yuki Kawana	Decision	3
2017	W	Yoichi Fukumoto	Submission	1
2016	L	Dmitriy Parubchenko	KO/TKO	2
2015	L	Kajan Johnson	Decision	3
2014	L	Yan Cabral	Submission	2
2014	L	Norman Parke	KO/TKO	2
2014	W	Yoshihiro Koyama	Decision	3
2013	W	Daisuke Hoshino	Submission	1
2013	W	Vitali Krat	Submission	1
2013	W	Jung Min Kang	Submission	1
2012	W	Koji Mori	Submission	1
2012	W	Shinichi Taira	Decision	2
2012	W	Darius Minkevicius	Submission	1
2012	W	Ryuki Ueyama	KO/TKO	1
2012	W	Daisuke Hanazawa	KO/TKO	2
2011	W	Katsuya Inoue	Submission	1
2011	W	Ryo Asami	KO/TKO	1
2011	W	Keigo Hirayama	Submission	1
2010	W	Eriya Matsuda	Submission	1
2010	L	Jorge Masvidal	Decision	3
2010	D	Kenichi Ito	Draw	2
2009	W	Daisuke Nakamura	Submission	1
2009	W	Yojiro Uchimura	Submission	1
2009	L	Kuniyoshi Hironaka	Submission	2
2008	W	Katsuhiko Nagata	Submission	2
2008	L	Koji Oishi	Decision	3
2007	D	Masanori Kanehara	Draw	2
2007	L	Dennis Siver	KO/TKO	2
2007	L	Thiago Tavares	Decision	3
2007	W	Masayuki Okude	Submission	1
2006	D	Erikas Petraitis	Draw	2
2006	W	Shinya Sato	Submission	1
2006	D	Darius Skliaudys	Draw	2
2005	W	Vito Woods	Submission	1
2005	L	Luiz Azeredo	KO/TKO	1
2005	D	Darius Skliaudys	Draw	3
2004	L	Roger Huerta	KO/TKO	1
2004	L	Yves Edwards	KO/TKO	1
2004	W	Hideo Tokoro	Submission	1
2004	W	Remigijus Morkevicius	Submission	1
2004	L	Marcus Aurélio	KO/TKO	2
2004	L	Rich Clementi	Decision	2
2003	W	Mindaugas Smirnovas	Submission	1
2003	W	Antoine Skinner	Submission	1
2002	W	Mindaugas Laurinaitis	Submission	1
2002	W	Kenichi Serizawa	KO/TKO	1
2002	W	Masaya Takita	Submission	1
2002	W	Yoshinobu Ota	Submission	1
2001	W	Takahito Iida	Submission	1
2001	W	Hideo Tokoro	Decision	3
2001	D	Jiro Wakabayashi	Draw	3
2001	W	Curtis Brigham	Submission	2
2000	W	Tashiro Nishiuchi	Submission	1
2000	W	Kiyohito Sugata	KO/TKO	1

15 of these opponents have their own page here.

SOURCE·Naoyuki Kotani — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2024-11-11

Reach in context

Reach advantage

-2.2%

66.5″ reach on a 68″ frame

lowestmedianhighest

Compared against 161 lightweight MMA fighters. Median 2.83%.

-2.9%lightweight MMA reach advantage7.4%

Measurements
Reach	66.5″ (168.9 cm)	3rd pct
Height	68″ (172.7 cm)	21st pct
Stance	—
Division	Lightweight MMA
Most active decade	2000s — 33 of 60 dated bouts
Country	Japan

Record

MMA record

37–18

62 bouts on record

Finish rate

89%

of wins ended inside the distance — lightweight MMA median 69%, 88th percentile

KO/TKO 16%
Submission 73%
Decision 11%

The career, bout by bout

60 recorded bouts from 2000 to 2023. Every incumbent shows this as a table you have to read; here it is as a shape you can see.

winlossdraw / NC2000–2023

Career span

24y

2000–2023

Longest unbeaten run

11

without a loss — draws do not break it

Busiest year

2004

6 bouts

Recorded bouts

60

60 with a date

Closest in build

lightweight MMA fighters with the nearest reach advantage.

Standing questions

What this record does and does not say

What is Naoyuki Kotani 小谷直之's record?: 37–18 in MMA. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 60 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.

Cross-references

Lightweight MMA

The 304 lightweight MMA fighters this record is ranked against, and the distribution 小谷直之 sits inside.

304 FIGHTERS 2000s MMA

33 of these bouts fall in the 2000s. This is what the rest of that decade's records look like.

541 FIGHTERS Longest unbeaten runs

Naoyuki Kotani 小谷直之 went 11 without a loss. This is where that sits against every run on the site.

LEADERBOARD