Fumiya Nishiguchi
Japanese baseball player
Fumiya Nishiguchi (西口 文也, Nishiguchi Fumiya), (born September 26, 1972) is a Japanese former professional baseball right-handed pitcher and current manager for the Saitama Seibu Lions of Nippon Professional Baseball (NPB). He played 21 seasons in NPB, all for the Lions.
Career
On September 23, 2024, Nishiguchi was announced as the new manager for the Saitama Seibu Lions.
The public source identifies “Fumiya Nishiguchi” as japanese baseball player. This brief keeps that definition visible, then builds a research path around Fumiya, Nishiguchi and Japanese.
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A short description can identify a subject without explaining its stakes. For “Fumiya Nishiguchi”, the useful work is to connect “japanese baseball player” to the records capable of establishing context and consequence.
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 Oct 25, 2025. The linked authority identifier is Q847434. VIAF identifies the subject as 49145602438201360883. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1972 and 2024.
Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. 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.
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Three-step research path
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Questions for further research
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This entry incorporates text from “Fumiya Nishiguchi” 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.