gptkbp:instanceOf
|
gptkb:football
|
gptkbp:ballSpeed
|
can exceed 150 mph
|
gptkbp:color
|
black
blue
green
purple
red
|
gptkbp:countryOfOrigin
|
gptkb:United_States
|
gptkbp:courtWalls
|
four walls and ceiling
|
gptkbp:equipment
|
sunglasses
court shoes
eye protection
|
gptkbp:fieldDimensions
|
40 feet by 20 feet by 20 feet
|
gptkbp:firstProfessionalTournament
|
1973
|
gptkbp:firstWorldChampionships
|
1981
|
gptkbp:goal
|
win rallies by making the ball bounce twice before opponent returns
|
gptkbp:governingBody
|
gptkb:International_Racquetball_Federation
gptkb:USA_Racquetball
|
gptkbp:hasDoubles
|
yes
|
gptkbp:hasJuniorChampionships
|
yes
|
gptkbp:hasMenCompetitions
|
yes
|
gptkbp:hasMixedDoubles
|
yes
|
gptkbp:hasProfessionalTour
|
yes
|
gptkbp:hasSingles
|
yes
|
gptkbp:hasTennisCourts
|
wood
synthetic
|
gptkbp:hasWomenCompetitions
|
yes
|
https://www.w3.org/2000/01/rdf-schema#label
|
Racquetball
|
gptkbp:introducedIn
|
1950
|
gptkbp:inventedBy
|
gptkb:Joseph_Sobek
|
gptkbp:numberOfPlayers
|
2
4
|
gptkbp:OlympicGames
|
no
|
gptkbp:played_for
|
indoor court
hollow rubber ball
racquet
|
gptkbp:popularFor
|
gptkb:Canada
gptkb:Mexico
gptkb:United_States
|
gptkbp:professionalTourName
|
gptkb:International_Racquetball_Tour
gptkb:Ladies_Professional_Racquetball_Tour
|
gptkbp:relatedTo
|
gptkb:handball
squash
tennis
|
gptkbp:scoredFor
|
first to 15 points
win by 2 points
|
gptkbp:serveType
|
Z serve
drive serve
lob serve
|
gptkbp:WorldChampionshipsMedal
|
yes
|
gptkbp:bfsParent
|
gptkb:Rackets
|
gptkbp:bfsLayer
|
6
|