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Flyweight boxing · most active 2010s

Ryuya Yamanaka

20–4 · 25 recorded bouts · 2012–2024

Boxing record

20–4

Ryuya Yamanaka finished 35% of 20 wins inside the distance — the 28th percentile for flyweight boxing, where the median is 47%. No reach is on record, so this page compares record rather than measurements.

20102020UNFILEDwin v Junpei Omori, 2012, decisionwin v Kenta Yokoe, 2012, decisionwin v Kazuki Koyanagi, 2012win v Junya Nishikawa, 2013, decisionwin v Masaki Hirai, 2013, koloss v Kenta Shimizu, 2013win v Takayuki Teraji, 2013win v Takahiro Murai, 2014, decisionloss v Roque Lauro, 2014win v Hiroki Yamamoto, 2014, decisionwin v Ryo Narizuka, 2015, decisionwin v Yoshinori Wakahara, 2015, decisionwin v Ronelle Ferreras, 2015, decisionwin v Merlito Sabillo, 2016, decisionwin v Thoedkiad Weerachon, 2016, kowin v Tatsuya Fukuhara, 2017, decisionwin v Khanongmek Sithkrukong, 2017, koloss v Vic Saludar, 2018, decisionwin v Moises Calleros, 2018win v Jonathan Taconing, 2022, decisionwin v Daisuke Sudo, 2022, koloss v Jayson Vayson, 2023, kowin v Kosuke Ando, 2023, decisionwin v Puriwat Taosuwan, 2024, koresult not stated v Opponent, no date on record
WON ABOVE·LOST BELOW BAR = STOPPAGE·BROKEN BAR = SUBMISSION·TICK = DECISION 2012–2024 · 1 UNDATED

SOURCE·Ryuya Yamanaka — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07

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 2026-07-07. 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
2024 W Puriwat Taosuwan KO/TKO2
2023 L Jayson Vayson KO/TKO2
2023 W Kosuke Ando Decision12
2022 W Jonathan Taconing Decision8
2022 W Daisuke Sudo KO/TKO5
2018 L Vic Saludar Decision12
2018 W Moises Calleros —8
2017 W Tatsuya Fukuhara Decision12
2017 W Khanongmek Sithkrukong KO/TKO1
2016 W Merlito Sabillo Decision12
2016 W Thoedkiad Weerachon KO/TKO3
2015 W Ryo Narizuka Decision8
2015 W Yoshinori Wakahara Decision10
2015 W Ronelle Ferreras Decision8
2014 W Takahiro Murai Decision8
2014 L Roque Lauro —8
2014 W Hiroki Yamamoto Decision8
2013 W Junya Nishikawa Decision6
2013 W Masaki Hirai KO/TKO4
2013 L Kenta Shimizu —1
2013 W Takayuki Teraji —2
2012 W Junpei Omori Decision4
2012 W Kenta Yokoe Decision4
2012 W Kazuki Koyanagi —4
undated ? Opponent ——

3 of these opponents have their own page here.

SOURCE·Ryuya Yamanaka — English Wikipedia (CC BY-SA 4.0)·derived figures computed here·REVIEWED 2026-07-07

What is on record

Measurements
Reachnot recorded
Height64″ (162.6 cm)
StanceOrthodox
DivisionFlyweight Boxing
competed at 3: mini flyweight, light flyweight, flyweight — compared here against the last
Most active decade2010s — 19 of 24 dated bouts
CountryJapan

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

2020 win vs Junpei Omori (2012)win vs Kenta Yokoe (2012)win vs Kazuki Koyanagi (2012)win vs Junya Nishikawa (2013)win vs Masaki Hirai (2013)loss vs Kenta Shimizu (2013)win vs Takayuki Teraji (2013)win vs Takahiro Murai (2014)loss vs Roque Lauro (2014)win vs Hiroki Yamamoto (2014)win vs Ryo Narizuka (2015)win vs Yoshinori Wakahara (2015)win vs Ronelle Ferreras (2015)win vs Merlito Sabillo (2016)win vs Thoedkiad Weerachon (2016)win vs Tatsuya Fukuhara (2017)win vs Khanongmek Sithkrukong (2017)loss vs Vic Saludar (2018)win vs Moises Calleros (2018)win vs Jonathan Taconing (2022)win vs Daisuke Sudo (2022)loss vs Jayson Vayson (2023)win vs Kosuke Ando (2023)win vs Puriwat Taosuwan (2024)
winlossdraw / NC2012–2024

Record

Boxing record

20–4

24 bouts on record

Finish rate

35%

of wins ended inside the distance — flyweight boxing median 47%, 28th percentile

By knockout: 7 (35%)By decision: 13 (65%)
  • By knockout 35%
  • By decision 65%

The career, bout by bout

25 recorded bouts from 2012 to 2024. Every incumbent shows this as a table you have to read; here it is as a shape you can see.

Career span

13y

2012–2024

Longest unbeaten run

8

without a loss — draws do not break it

Busiest year

2013

4 bouts

Recorded bouts

25

24 with a date

Standing questions

What this record does and does not say

What is Ryuya Yamanaka's record?
20–4 in boxing. That is the aggregate stated in the English Wikipedia infobox; the results table on the same article lists 25 bouts individually.
How many of Ryuya Yamanaka's bouts have no date?
1 of 25. 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.

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Amit Sharma

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