The 2019 Keio Challenger was a professional tennis tournament played on hardcourts. It was the 14th (men's) and third (women's) editions of the tournament and part of the 2019 ATP Challenger Tour and the 2019 ITF Women's World Tennis Tour. It took place in Yokohama, Japan between 25 February and 10 March 2019.

2019 Keio Challenger
Date25 February – 3 March (men's)
4 – 10 March (women's)
Edition14th (men's)
3rd (women's)
CategoryATP Challenger Tour
ITF Women's World Tennis Tour
SurfaceHard
LocationYokohama, Japan
Champions
Men's singles
South Korea Kwon Soon-woo
Women's singles
Belgium Greet Minnen
Men's doubles
Tunisia Moez Echargui / Tunisia Skander Mansouri
Women's doubles
South Korea Choi Ji-hee / South Korea Han Na-lae
← 2018 · Keio Challenger · 2022 →

Men's singles main-draw entrants

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Seeds

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Country Player Rank1 Seed
  JPN Tatsuma Ito 132 1
  GER Oscar Otte 156 2
  JPN Yūichi Sugita 160 3
  JPN Hiroki Moriya 177 4
  GER Mats Moraing 184 5
  AUT Jurij Rodionov 191 6
  JPN Go Soeda 194 7
  ISR Dudi Sela 195 8
  SLO Blaž Rola 201 9
  ITA Gianluca Mager 213 10
  KOR Kwon Soon-woo 225 11
  ARG Pedro Cachin 235 12
  BRA Guilherme Clezar 237 13
  CAN Filip Peliwo 238 14
  SRB Viktor Troicki 243 15
  FRA Enzo Couacaud 249 16
  • 1 rankings are as of 18 February 2019

Other entrants

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The following players received wildcards into the singles main draw:

The following player received entry into the singles main draw using a protected ranking:

The following players received entry into the singles main draw using their ITF World Tennis ranking:

The following players received entry from the qualifying draw:

The following player received entry as a lucky loser:

  •   Shintaro Imai

Women's singles main-draw entrants

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Seeds

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Country Player Rank1 Seed
  SRB Ivana Jorović 108 1
  CHN Liu Fangzhou 173 2
  SVK Rebecca Šramková 182 3
   SUI Ylena In-Albon 183 4
  CHN Lu Jiajing 186 5
  SRB Dejana Radanović 195 6
  KOR Han Na-lae 199 7
  JPN Ayano Shimizu 206 8
  • 1 rankings are as of 25 February 2019.

Other entrants

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The following players received wildcards into the singles main draw:

The following players received entry into the singles main draw using their ITF World Tennis ranking:

The following players received entry from the qualifying draw:

Champions

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Men's singles

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Women's singles

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Men's doubles

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Women's doubles

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