2018 Rakuten Japan Open Tennis Championships – Singles

David Goffin was the defending champion, but withdrew before the competition began.

Singles
2018 Rakuten Japan Open Tennis Championships
Final
ChampionRussia Daniil Medvedev
Runner-upJapan Kei Nishikori
Score6–2, 6–4
Details
Draw32 (4Q / 3WC)
Seeds8
Events
Singles Doubles
← 2017 · Japan Open · 2019 →

Daniil Medvedev won the title, defeating Kei Nishikori in the final, 6–2, 6–4.

Seeds

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  1.   Marin Čilić (first round)
  2.   Kevin Anderson (quarterfinals)
  3.   Kei Nishikori (final)
  4.   Diego Schwartzman (first round)
  5.   Stefanos Tsitsipas (quarterfinals)
  6.   Milos Raonic (quarterfinals)
  7.   Chung Hyeon (first round)
  8.   Richard Gasquet (semifinals)

Draw

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Finals

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Semifinals Final
          
    Denis Shapovalov 3 3
Q   Daniil Medvedev 6 6
Q   Daniil Medvedev 6 6
3   Kei Nishikori 2 4
3   Kei Nishikori 77 6
8   Richard Gasquet 62 1

Top half

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First round Second round Quarterfinals Semifinals
1   M Čilić 6 4 61
  J-L Struff 3 6 77   J-L Struff 77 62 6
  J Chardy 4 6 6   J Chardy 63 77 4
  D Džumhur 6 3 3   J-L Struff 6 67 4
  S Wawrinka 6 6   D Shapovalov 4 79 6
SE   T Fritz 3 4   S Wawrinka 6 1 4
  D Shapovalov 6 3 6   D Shapovalov 4 6 6
7   H Chung 3 6 2   D Shapovalov 3 3
4   D Schwartzman 4 4 Q   D Medvedev 6 6
Q   D Medvedev 6 6 Q   D Medvedev 6 6
Q   M Kližan 6 77 Q   M Kližan 4 3
  S Johnson 4 64 Q   D Medvedev 77 6
Q   Y Watanuki 67 6 6 6   M Raonic 64 3
  R Haase 79 4 1 Q   Y Watanuki 3 62
  A Mannarino 3 4 6   M Raonic 6 77
6   M Raonic 6 6

Bottom half

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First round Second round Quarterfinals Semifinals
5   S Tsitsipas 6 6
WC   T Daniel 1 3 5   S Tsitsipas 6 5 6
  G Simon 77 65 2   A de Minaur 3 7 1
  A de Minaur 61 77 6 5   S Tsitsipas 3 3
  B Paire 6 77 3   K Nishikori 6 6
  N Jarry 4 61   B Paire 3 5
WC   Y Sugita 4 1 3   K Nishikori 6 7
3   K Nishikori 6 6 3   K Nishikori 77 6
8   R Gasquet 710 6 8   R Gasquet 62 1
Q   D Kudla 68 3 8   R Gasquet 77 77
  N Kyrgios 7 77   N Kyrgios 64 61
WC   Y Nishioka 5 63 8   R Gasquet 78 77
  M Marterer 5 4 2   K Anderson 66 64
  F Tiafoe 7 6   F Tiafoe 3 6 2
  M Ebden 6 61 2 2   K Anderson 6 3 6
2   K Anderson 4 77 6

Qualifying

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Seeds

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  1.   Daniil Medvedev (qualified)
  2.   Martin Kližan (qualified)
  3.   Denis Kudla (qualified)
  4.   Mackenzie McDonald (first round)
  5.   Marius Copil (first round)
  6.   Bradley Klahn (qualifying competition)
  7.   Hubert Hurkacz (first round)
  8.   Tim Smyczek (first round)

Qualifiers

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Qualifying draw

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First qualifier

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First round Qualifying competition
          
1   Daniil Medvedev 6 6
Alt   Hiroki Moriya 3 3
1   Daniil Medvedev 64 6 6
PR   Egor Gerasimov 77 3 3
PR   Egor Gerasimov 6 6
5   Marius Copil 4 3

Second qualifier

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First round Qualifying competition
          
2   Martin Kližan 6 6
    Prajnesh Gunneswaran 4 2
2   Martin Kližan 6 6
6   Bradley Klahn 3 4
    Ruben Bemelmans 6 3 64
6   Bradley Klahn 2 6 77

Third qualifier

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First round Qualifying competition
          
3   Denis Kudla 6 3 6
    Horacio Zeballos 2 6 4
3   Denis Kudla 6 1 6
WC   Yasutaka Uchiyama 3 6 3
WC   Yasutaka Uchiyama 6 6
7   Hubert Hurkacz 2 2

Fourth qualifier

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First round Qualifying competition
          
4   Mackenzie McDonald 4 6 3
WC   Tatsuma Ito 6 1 6
WC   Tatsuma Ito 2 4
WC   Yosuke Watanuki 6 6
WC   Yosuke Watanuki 6 6
8   Tim Smyczek 4 2
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  NODES
see 5