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Kento Sugiyama

baseball player

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 5, 2026
Entity authorityQ3275706 ↗
Source-derived summary

Kento Sugiyama (杉山 賢人, Sugiyama Kento; born December 12, 1968) is a retired Japanese professional baseball player from Numazu, Shizuoka, Japan. He played for the Seibu Lions, Hanshin Tigers, Osaka Kintetsu Buffaloes, and Yokohama BayStars during his 10-year career in the Japanese professional leagues.

Sugiyama was drafted in the first round of the 1992 amateur draft by the Seibu Lions, and won the Japanese rookie of the year award in 1993, making 54 appearances with a 2.80 ERA. His pitching deteriorated from then on, and he was traded to the Hanshin Tigers in mid-1999. He was traded to the Osaka Kintetsu Buffaloes in mid-2000, and was traded for the third time in his career in mid-2001 to the Yokohama BayStars. He made 32 appearances with the BayStars in 2001, but retired at the end of the season.

He worked as a batting pitcher for the BayStars before becoming the pitching coach for the Tohoku Rakuten Golden Eagles in 2006.

He won a bronze medal in the 1992 Summer Olympics before entering the Japanese professional leagues.

Editorial summary

The public source identifies “Kento Sugiyama” as baseball player. This brief keeps that definition visible, then builds a research path around Kento, Sugiyama and baseball.

Editorial reviewStrongest as a route into the people, institutions and dated events that shaped the subject’s public record. The current lead gives the account dated anchors—1968, 1992, 1993, 1999—that can be checked directly. The linked authority record independently contributes the date 1968-12-12. Its value is orientation rather than verdict, with Kento, Sugiyama and baseball providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Kento Sugiyama”, the useful work is to connect “baseball player” to the records capable of establishing context and consequence.

Evidence profile

Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated May 5, 2026. The linked authority identifier is Q3275706. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1968, 1992, 1993 and 1999.

Critical limits

Later biographies can compress uncertainty and repeat inherited reputations, so apparently settled claims may still require comparison. 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

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Kento Sugiyama”, its source revision and the description used here.
  2. Expand the search: follow Kento Sugiyama primary sources, Kento Sugiyama archive and Kento 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 “Kento Sugiyama”?
  2. How has the subject’s reputation changed across later accounts?
  3. Which claims depend on a single source or contested interpretation?
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Source & attribution

This entry incorporates text from “Kento Sugiyama” 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.