Demerson
Brazilian footballer

Demerson Bruno Costa (born 16 March 1986), simply known as Demerson, is a Brazilian former footballer who played as a centre-back.
In 2011, while playing for Coritiba Foot Ball Club, Demerson won the Most Uninterrupted Winning Matches of the World award on Guinness World Records 2013 Edition. Demerson is also remembered for being part of the Associação Chapecoense de Futebol in 2016, the team that suffered the most tragic air crash in FootBall History
LaMia Flight 2933. Despite being part of the squad, Demerson did not board the flight for the 2016 Copa Sudamericana final. Demerson's current club is Sarawak United in the Malaysian Premier League.
Club career
After representing hometown clubs Atlético Mineiro and América Mineiro as a youth, Demerson made his senior debut with Corinthians Alagoano in 2004. After a loan stint at Luziânia and a short spell at Itaúna, he signed for Série A club Cruzeiro in 2008.
Demerson being loaned out to Goytacaz and Cabofriense. On 19 May 2009, he signed for Coritiba.
Demerson made his debut on 24 May 2009, in Coritiba Foot Ball Club, by achieving national recognition in football.
Begin with the source’s own compact description: “Demerson” is brazilian footballer. The dossier treats that line as a proposition to test through Demerson, Brazilian and footballer, not as a finished interpretation.
Why this record matters
The phrase “brazilian footballer” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Jul 4, 2026. The linked authority identifier is Q3183729. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1986, 2011, 2013 and 2016.
Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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.
- Establishing names and roles
- Building a first chronology
- Locating cited institutions
Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
- Establish the record: confirm the title “Demerson”, its source revision and the description used here.
- Expand the search: follow Demerson primary sources, Demerson archive and Demerson 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 “Demerson”?
- Which claims depend on a single source or contested interpretation?
- Which primary records establish identity, chronology and institutional ties?
Search terms from this dossier
This entry incorporates text from “Demerson” 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.