IBF heavyweight title
E303904
The IBF heavyweight title is a major world championship in professional boxing sanctioned by the International Boxing Federation, historically held by top heavyweights such as Evander Holyfield.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IBF heavyweight title canonical | 10 |
How this entity was disambiguated
This entity first appeared as the object of triple T2728576 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IBF heavyweight title Context triple: [Evander Holyfield, worldTitlesHeld, IBF heavyweight title]
-
A.
WBC heavyweight title
The WBC heavyweight title is one of boxing's most prestigious world championships in the heavyweight division, sanctioned by the World Boxing Council.
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B.
IBF middleweight title
The IBF middleweight title is a world championship boxing title sanctioned by the International Boxing Federation for competitors in the middleweight division.
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C.
WBA cruiserweight title
The WBA cruiserweight title is a major professional boxing world championship sanctioned by the World Boxing Association for fighters in the cruiserweight division.
-
D.
IBF light welterweight title
The IBF light welterweight title is a world championship boxing title at 140 pounds sanctioned by the International Boxing Federation.
-
E.
World Heavyweight Champion
The World Heavyweight Champion is the top title in professional boxing’s heavyweight division, historically held by the sport’s most dominant and celebrated fighters.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IBF heavyweight title Target entity description: The IBF heavyweight title is a major world championship in professional boxing sanctioned by the International Boxing Federation, historically held by top heavyweights such as Evander Holyfield.
-
A.
WBC heavyweight title
The WBC heavyweight title is one of boxing's most prestigious world championships in the heavyweight division, sanctioned by the World Boxing Council.
-
B.
IBF middleweight title
The IBF middleweight title is a world championship boxing title sanctioned by the International Boxing Federation for competitors in the middleweight division.
-
C.
WBA cruiserweight title
The WBA cruiserweight title is a major professional boxing world championship sanctioned by the World Boxing Association for fighters in the cruiserweight division.
-
D.
IBF light welterweight title
The IBF light welterweight title is a world championship boxing title at 140 pounds sanctioned by the International Boxing Federation.
-
E.
World Heavyweight Champion
The World Heavyweight Champion is the top title in professional boxing’s heavyweight division, historically held by the sport’s most dominant and celebrated fighters.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
professional boxing championship
ⓘ
world heavyweight boxing title ⓘ |
| awardedFor | winning an IBF-sanctioned heavyweight world title fight ⓘ |
| beltDesignOwner | International Boxing Federation ⓘ |
| canBeStrippedFor | violations of IBF rules ⓘ |
| canBeUnifiedWith |
WBA heavyweight title
ⓘ
WBC heavyweight title ⓘ WBO heavyweight title ⓘ |
| canBeVacatedBy |
failure to defend against mandatory challenger
ⓘ
moving to another weight class ⓘ |
| category | world heavyweight boxing championships ⓘ |
| competitionType | professional boxing ⓘ |
| contestedIn | 12-round championship bouts ⓘ |
| discipline | gloved boxing ⓘ |
| division | men's heavyweight division ⓘ |
| eligibility | male professional heavyweight boxers ⓘ |
| governingBodyAbbreviation | IBF ⓘ |
| hasChampion |
Andy Ruiz Jr.
ⓘ
Anthony Joshua ⓘ Charles Martin ⓘ Evander Holyfield ⓘ Joseph Parker ⓘ Larry Holmes ⓘ Lennox Lewis ⓘ Michael Spinks ⓘ Mike Tyson ⓘ Oleksandr Usyk ⓘ Riddick Bowe ⓘ Tyson Fury ⓘ Wladimir Klitschko ⓘ |
| hasFeature |
mandatory challengers designated by IBF
ⓘ
voluntary defenses allowed under IBF rules ⓘ |
| hasStatus | active title ⓘ |
| isConsidered | major world title ⓘ |
| isMajorTitleIn | heavyweight boxing ⓘ |
| isOneOf | four major heavyweight titles ⓘ |
| minimumWeight | over 200 pounds (90.7 kg) ⓘ |
| organizationHeadquartersOfSanctioningBody |
Springfield, New Jersey
ⓘ
surface form:
Springfield, New Jersey, United States
|
| partOf | IBF world titles ⓘ |
| rankingCriteria | IBF rules and regulations ⓘ |
| rankingSystem | IBF heavyweight rankings ⓘ |
| requires |
IBF-approved officials
ⓘ
compliance with IBF medical and safety standards ⓘ sanctioning by IBF for each title bout ⓘ |
| sanctionedBy | International Boxing Federation ⓘ |
| scope | world ⓘ |
| sport | boxing ⓘ |
| weightClass | heavyweight ⓘ |
| weightLimit | no upper weight limit ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IBF heavyweight title Description of subject: The IBF heavyweight title is a major world championship in professional boxing sanctioned by the International Boxing Federation, historically held by top heavyweights such as Evander Holyfield.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Larry Holmes