Norifumi Yamamoto
66″ reach · +3.08% reach advantage · 68th percentile
18–6
Norifumi Yamamoto has a reach of 66″ against a height of 64″ — a reach advantage of +3.08%, above average for lightweight MMA and the 68th percentile of the 161 compared here.
SOURCE·Norifumi Yamamoto — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-27
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 2026-07-27. Boxing tables are read by header name and MMA records by the fixed column order of the
MMA recordtemplate — 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
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.
| Year | Result | Opponent | Method | Rd |
|---|---|---|---|---|
| 2015 | N | Roman Salazar | — | 2 |
| 2012 | L | Vaughan Lee | Submission | 1 |
| 2011 | L | Darren Uyenoyama | Decision | 3 |
| 2011 | L | Demetrious Johnson | Decision | 3 |
| 2010 | W | Federico Lopez | KO/TKO | 1 |
| 2009 | L | Masanori Kanehara | Decision | 3 |
| 2009 | L | Joe Warren | Decision | 2 |
| 2007 | W | Rani Yahya | KO/TKO | 2 |
| 2007 | W | Bibiano Fernandes | Decision | 3 |
| 2006 | W | István Majoros | KO/TKO | 1 |
| 2006 | W | Kazuyuki Miyata | KO/TKO | 1 |
| 2005 | W | Genki Sudo | KO/TKO | 1 |
| 2005 | W | Caol Uno | KO/TKO | 2 |
| 2005 | W | Ian James Schaffa | KO/TKO | 3 |
| 2004 | W | Jadamba Narantungalag | KO/TKO | 1 |
| 2004 | W | Kazuya Yasuhiro | Submission | 2 |
| 2004 | W | Tony Valente | Submission | 1 |
| 2003 | W | Caleb Mitchell | KO/TKO | 1 |
| 2003 | W | Jeff Curran | Decision | 3 |
| 2002 | W | Tetsuo Katsuta | KO/TKO | 1 |
| 2002 | L | Stephen Palling | KO/TKO | 1 |
| 2001 | N | Josh Thomson | — | 2 |
| 2001 | W | Hideki Kadowaki | KO/TKO | 1 |
| 2001 | W | Masashi Kameda | KO/TKO | 1 |
| 2001 | W | Masato Shiozawa | Decision | 2 |
| undated | W | Royler Gracie | KO/TKO | — |
14 of these opponents have their own page here.
SOURCE·Norifumi Yamamoto — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-27
Reach in context
Reach advantage
+3.08%
66″ reach on a 64″ frame
Compared against 161 lightweight MMA fighters. Median 2.83%.
| Reach | 66″ (167.6 cm) | 1st pct |
|---|---|---|
| Height | 64″ (162.6 cm) | 2nd pct |
| Stance | — | |
| Division | Lightweight MMA competed at 3: bantamweight, featherweight, lightweight — compared here against the last | |
| Most active decade | 2000s — 20 of 25 dated bouts | |
| Country | Japan |
Record
MMA record
18–6
24 bouts on record
Finish rate
83%
of wins ended inside the distance — lightweight MMA median 69%, 76th percentile
The career, bout by bout
26 recorded bouts from 2001 to 2015. Every incumbent shows this as a table you have to read; here it is as a shape you can see.
Career span
15y
2001–2015
Longest unbeaten run
12
without a loss — draws do not break it
Busiest year
2001
4 bouts
Recorded bouts
26
25 with a date
Records in more than one sport
Every incumbent database is siloed by sport. Norifumi Yamamoto competed in 2, so the records sit together here.
| Discipline | Won | Lost | By KO |
|---|---|---|---|
| MMA | 18 | 6 | 13 |
| Kickboxing | 1 | 4 | 1 |
Closest in build
lightweight MMA fighters with the nearest reach advantage.
- Malaipet+3.12% 69″ reach · 68th pct
- Rani Yahya+3.04% 68″ reach · 65th pct
- Felicia Spencer+3.04% 68″ reach · 65th pct
- Michihiro Omigawa 小見川道大+3.04% 68″ reach · 65th pct
- Matt Serra+3.04% 68″ reach · 65th pct
- Brad Pickett+3.04% 68″ reach · 65th pct
- Kai Kamaka III+3% 69″ reach · 63rd pct
- Diego Brandão+3% 69″ reach · 63rd pct
What this record does and does not say
- What is Norifumi Yamamoto's record?
- 18–6 in MMA. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 26 bouts individually.
- How many of Norifumi Yamamoto's bouts have no date?
- 1 of 26. The source lists them without a date this site can read, so they are printed with no year, sorted last, and drawn past the double rule in the record line rather than placed in the chronology. No year has been inferred for any of them.
- 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.
Where this record leads
The 304 lightweight MMA fighters this record is ranked against, and the distribution Yamamoto sits inside.
304 FIGHTERS 2000s MMA20 of these bouts fall in the 2000s. This is what the rest of that decade's records look like.
541 FIGHTERS Demetrious Johnson vs Norifumi YamamotoA bout both records confirm — set out side by side, with every opponent the two men have in common.
2011 Longest unbeaten runsNorifumi Yamamoto went 12 without a loss. This is where that sits against every run on the site.
LEADERBOARD