The Keio Challenger is a professional

tennis Tennis is a racket sport that is played either individually against a single opponent ( singles) or between two teams of two players each ( doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball ...

tournament played on

hardcourt A hardcourt (or hard court) is a surface or floor on which a sport is played, most usually in reference to tennis courts. It is typically made of rigid materials such as asphalt or concrete, and covered with acrylic resins to seal the surface and ...

s. It is currently part of the

ATP Challenger Tour The ATP Challenger Tour, known until the end of 2008 as the ATP Challenger Series, is a series of international men's professional tennis tournaments. The Challenger Tour events are the second-highest tier of tennis competition, behind the ATP T ...

and the

ITF Women's Circuit The ITF Women's World Tennis Tour, previously known as the ITF Women's Circuit, is a series of professional tennis tournaments run by the International Tennis Federation for female professional tennis players. History It serves as a developmental ...

. Having been held in

Yokohama is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 population of 3.8 million. It lies on Tokyo Bay, south of To ...

, Japan since 1999, the women's edition of the event was introduced in 2017.

Past finals

Men's singles

Men's doubles

Women's singles

Women's doubles

External links

Official website
{{ITF Women's Circuit ATP Challenger Tour ITF Women's World Tennis Tour Hard court tennis tournaments Recurring sporting events established in 1999 Tennis tournaments in Japan Sport in Yokohama