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River Shimanto Ultramarathon

Open-knowledge reference entry

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 24, 2024
Entity authorityQ11419587 ↗
Source-derived summary

The River Shimanto Ultramarathon, also referred to as Shimantogawa Ultra Marathon (四万十川ウルトラマラソン), is a 100 km and 60 km ultramarathon foot road race event held annually in October in Kochi, Japan since 1995. It is an official 100 km and 60 km event endorsed by JAAF. Its 1998 event was held as IAU 100 km World Championship. Time limit for the 100 km race is 14 hours, and that for the 60 km race is 9 hours and 30 minutes.

100km Results

2013

2,000 participants were accepted out of 6,267 entries over all. In 100 km race, 1,091 runners finished out of 1,466 starters.

Men : Yoshikazu Hara (原 良和) 6:48:43 / Ladies : Tomoko Hara (原 朋子) 8:04:38

2012

2,000 participants were accepted out of 4,859 entries over all. In 100 km race, 1,072 runners finished out of 1,475 starters.

Editorial summary

This brief starts where responsible research should: with the source description of “River Shimanto Ultramarathon” as open-knowledge reference entry. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current lead gives the account dated anchors—1995, 1998, 2013, 2012—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where River, Shimanto and Ultramarathon can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as open-knowledge reference entry. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 24, 2024. The linked authority identifier is Q11419587. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1995, 1998, 2013 and 2012.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “River Shimanto Ultramarathon”, its source revision and the description used here.
  2. Expand the search: follow River Shimanto Ultramarathon primary sources, River Shimanto Ultramarathon archive and River research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “River Shimanto Ultramarathon”?
  2. Which institution is responsible for the underlying evidence?
  3. Which cited source is closest to the event, object or claim?
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Source & attribution

This entry incorporates text from “River Shimanto Ultramarathon” 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.