Japan Open 2001
Lleyton Hewitt won the title, beating Michel Kratochvil 6–4 6–2 in the final.
Main draw 56 players
- 1🇦🇺Lleyton HewittFinal · Champion
- 2🇳🇱Sjeng SchalkenQuarterfinals · Lost to Michel Kratochvil
- 3🇩🇪Rainer SchuettlerRound of 16 · Lost to Karol Kucera
- 4🇸🇪Jonas BjorkmanRound of 16 · Lost to James Blake
- 5🇨🇭Michel KratochvilFinal · Lost to Lleyton Hewitt
- 6🇺🇸Michael ChangRound of 16 · Lost to Takao Suzuki
- 7🇨🇱Marcelo RiosQuarterfinals · Lost to James Blake
- 8🇪🇸Francisco ClavetQuarterfinals · Lost to Lleyton Hewitt
- 9🇩🇪Lars BurgsmullerRound of 16 · Lost to Michel Kratochvil
- 10🇮🇱Harel LevyRound of 32 · Lost to Danai Udomchoke
- 11🇨🇱Nicolas MassuRound of 16 · Lost to Francisco Clavet
- 12🇦🇺Andrew IlieRound of 64 · Lost to Takao Suzuki
- 13🇪🇸Alex CalatravaRound of 64 · Lost to Ivo Heuberger
- 14🇦🇺Wayne ArthursRound of 32 · Lost to James Blake
- 15🇺🇸Michael RussellRound of 16 · Lost to Lleyton Hewitt
- 16🇵🇾Ramon DelgadoRound of 32 · Lost to Karol Kucera
- 🇺🇸James BlakeSemifinals · Lost to Lleyton Hewitt
- 🇸🇰Karol KuceraSemifinals · Lost to Michel Kratochvil
- WC🇯🇵Takao SuzukiQuarterfinals · Lost to Karol Kucera
- Q🇹🇭Danai UdomchokeRound of 16 · Lost to Marcelo Rios
- 🇨🇭Ivo HeubergerRound of 16 · Lost to Sjeng Schalken
- 🇩🇪Axel PretzschRound of 32 · Lost to Michael Chang
- ZIMByron BlackRound of 32 · Lost to Marcelo Rios
- 🇵🇭Cecil MamiitRound of 32 · Lost to Michael Russell
- 🇩🇪Christian VinckRound of 32 · Lost to Sjeng Schalken
- WC🇯🇵Hiroki KondoRound of 32 · Lost to Jonas Bjorkman
- 🇰🇷Hyung Taik LeeRound of 32 · Lost to Lars Burgsmuller
- 🇸🇪Magnus LarssonRound of 32 · Lost to Rainer Schuettler
- 🇩🇪Marc Kevin GoellnerRound of 32 · Lost to Lleyton Hewitt
- Q🇮🇱Noam BehrRound of 32 · Lost to Ivo Heuberger
- 🇨🇿Ota FukarekRound of 32 · Lost to Michel Kratochvil
- 🇦🇲Sargis SargsianRound of 32 · Lost to Takao Suzuki
- 🇩🇪Tomas BehrendRound of 32 · Lost to Francisco Clavet
- 🇨🇿Tomas ZibRound of 32 · Lost to Nicolas Massu
- 🇧🇷Alexandre SimoniRound of 64 · Lost to Karol Kucera
- 🇧🇷Andre SaRound of 64 · Lost to Sargis Sargsian
- 🇬🇧Barry CowanRound of 64 · Lost to Danai Udomchoke
- Q🇨🇿Daniel VacekRound of 64 · Lost to Ota Fukarek
- 🇳🇱Edwin KempesRound of 64 · Lost to Nicolas Massu
- 🇵🇭Eric TainoRound of 64 · Lost to Byron Black
- WC🇯🇵Gouichi MotomuraRound of 64 · Lost to Ramon Delgado
- 🇬🇪Irakli LabadzeRound of 64 · Lost to Christian Vinck
- 🇬🇧Jamie DelgadoRound of 64 · Lost to Marc Kevin Goellner
- Q🇺🇸Jim ThomasRound of 64 · Lost to Cecil Mamiit
- 🇩🇪Markus HantschkRound of 64 · Lost to Hyung Taik Lee
- 🇬🇧Martin LeeRound of 64 · Lost to Magnus Larsson
- 🇫🇷Michael LlodraRound of 64 · Lost to Lars Burgsmuller
- Q🇯🇵Michihisa OnodaRound of 64 · Lost to Hiroki Kondo
- 🇿🇦Neville GodwinRound of 64 · Lost to Michael Russell
- 🇫🇷Nicolas ThomannRound of 64 · Lost to Tomas Behrend
- 🇹🇭Paradorn SrichaphanRound of 64 · Lost to Axel Pretzsch
- Q🇨🇿Radim ZitkoRound of 64 · Lost to Wayne Arthurs
- Q🇯🇵Satoshi IwabuchiRound of 64 · Lost to Harel Levy
- WC🇯🇵Takahiro TerachiRound of 64 · Lost to Noam Behr
- WC🇯🇵Yaoki IshiiRound of 64 · Lost to James Blake
- 🇰🇷Yong Il YoonRound of 64 · Lost to Tomas Zib