Open Era of tennis
E511605
The Open Era of tennis is the modern period, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together, transforming the sport into a fully professional global circuit.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Open Era of tennis canonical | 1 |
| Open tennis era | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5320406 — 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: Open Era of tennis Context triple: [Jimmy Connors, era, Open Era of tennis]
-
A.
Grand Slam tennis tournaments
Grand Slam tennis tournaments are the four most prestigious annual events in professional tennis, comprising the Australian Open, French Open, Wimbledon, and US Open.
-
B.
World Tennis
World Tennis was a sports promotion organization best known for staging high-profile tennis events, including the famous "Battle of the Sexes" match between Billie Jean King and Bobby Riggs.
-
C.
Calendar Grand Slam
A Calendar Grand Slam is the rare feat in tennis of winning all four major Grand Slam tournaments within a single calendar year.
-
D.
Miami Open tennis tournament
The Miami Open tennis tournament is a premier annual professional tennis event on the ATP and WTA tours, attracting top players from around the world to compete on hard courts in South Florida.
-
E.
ATP Tour
The ATP Tour is the global elite men's professional tennis circuit featuring the sport's top players competing in tournaments worldwide.
- 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: Open Era of tennis Target entity description: The Open Era of tennis is the modern period, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together, transforming the sport into a fully professional global circuit.
-
A.
Grand Slam tennis tournaments
Grand Slam tennis tournaments are the four most prestigious annual events in professional tennis, comprising the Australian Open, French Open, Wimbledon, and US Open.
-
B.
World Tennis
World Tennis was a sports promotion organization best known for staging high-profile tennis events, including the famous "Battle of the Sexes" match between Billie Jean King and Bobby Riggs.
-
C.
Calendar Grand Slam
A Calendar Grand Slam is the rare feat in tennis of winning all four major Grand Slam tournaments within a single calendar year.
-
D.
Miami Open tennis tournament
The Miami Open tennis tournament is a premier annual professional tennis event on the ATP and WTA tours, attracting top players from around the world to compete on hard courts in South Florida.
-
E.
ATP Tour
The ATP Tour is the global elite men's professional tennis circuit featuring the sport's top players competing in tournaments worldwide.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | era in tennis history ⓘ |
| allowed |
amateur players in the same draws as professionals
ⓘ
professional players in Grand Slam tournaments ⓘ |
| alsoKnownAs |
Open Era
NERFINISHED
ⓘ
Open era NERFINISHED ⓘ |
| appliesToSport | tennis ⓘ |
| characterizedBy |
allowing amateurs and professionals to compete together
ⓘ
global tournament circuit ⓘ professionalization of tennis ⓘ |
| distinguishedFrom | pre-Open Era tennis ⓘ |
| endTime | ongoing ⓘ |
| hasConsequence |
higher earnings for top players
ⓘ
increased global popularity of tennis ⓘ standardization of tournament categories ⓘ statistical separation between pre-Open Era and Open Era records ⓘ unified competition level between amateurs and professionals ⓘ |
| hasFeature |
commercial sponsorships
ⓘ
global tour structure ⓘ prize money for players ⓘ ranking systems for players ⓘ television broadcasting deals ⓘ |
| hasKeyEvent |
1968 Australian Open (transition to open status completed by 1969)
ⓘ
1968 French Open NERFINISHED ⓘ 1968 US Open NERFINISHED ⓘ 1968 Wimbledon Championships NERFINISHED ⓘ start of open tournaments in 1968 ⓘ |
| hasKeyOrganization |
Association of Tennis Professionals
NERFINISHED
ⓘ
International Tennis Federation NERFINISHED ⓘ Women’s Tennis Association NERFINISHED ⓘ |
| hasKeyTournamentCategory |
ATP Tour events
ⓘ
Davis Cup NERFINISHED ⓘ Fed Cup/Billie Jean King Cup NERFINISHED ⓘ Grand Slam tournaments NERFINISHED ⓘ Olympic tennis (post-1988 reintroduction) ⓘ WTA Tour events NERFINISHED ⓘ |
| hasTemporalContext |
21st century
ⓘ
late 20th century ⓘ |
| includes |
Open Era ATP Tour era
ⓘ
Open Era Grand Slam tournaments NERFINISHED ⓘ Open Era WTA Tour era NERFINISHED ⓘ |
| legalStatus | professional era of tennis ⓘ |
| precededBy | Amateur Era of tennis NERFINISHED ⓘ |
| regulates | participation of professionals in major events ⓘ |
| startTime | 1968 ⓘ |
| transformedInto | fully professional sport ⓘ |
| usedAsReferenceIn |
GOAT (Greatest of All Time) debates in tennis
ⓘ
tennis record-keeping ⓘ |
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: Open Era of tennis Description of subject: The Open Era of tennis is the modern period, beginning in 1968, when major tournaments allowed both amateur and professional players to compete together, transforming the sport into a fully professional global circuit.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Open tennis era