Shokichi Natsui
Japanese judoka

Shokichi Natsui (夏井 昇吉, Natsui Shōkichi; 10 October 1925 – 13 September 2006) was a Japanese judoka from the Akita Prefecture. He became the first world champion in judo, winning the title at the 1956 World Judo Championships in Tokyo, by beating Yoshihiko Yoshimatsu in the final. As there were no weight classes in the world championships until 1965, Natsui was the only champion in 1956.
First judo world championship
Background
The International Judo Federation (IJF) was founded in 1951, and five years later IJF organized the first World Judo Championships, held in Tokyo on 5 March 1956.
Contestants
Natsui and his teammate Yoshimatsu, both policemen, were the two highest-ranked judoka at the championship; the 36-year-old Yoshimatsu held the rank of nanadan (7th dan), and Natsui rokudan (6th dan), while Pariset from France held yondan (4th dan), and future three-time world champion Anton Geesink from the Netherlands held sandan (3rd dan). The 1956 championship had 31 competitors from 21 countries.
Natsui's matches
In the first round Natsui took only 3 seconds to eliminate the contestant from Cambodia, with the shoulder throw seoi nage. In the second round he met Johannsen from Denmark, and won after 8 seconds, with tai otoshi. The match against Woodrey from Belgium in round 3 lasted 44 seconds, with victory going to Natsui. In the semi-final he met Henri Courtine from France; this match lasted only 8 seconds, with a tai otoshi win to Natsui.
This brief starts where responsible research should: with the source description of “Shokichi Natsui” as japanese judoka. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as japanese judoka. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 30, 2026. The linked authority identifier is Q2917026. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1925, 2006, 1956 and 1965.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Shokichi Natsui”, its source revision and the description used here.
- Expand the search: follow Shokichi Natsui primary sources, Shokichi Natsui archive and Shokichi research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Shokichi Natsui”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Shokichi Natsui” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.