Sofia 2017
Grigor Dimitrov won the title, beating David Goffin 7–5 6–4 in the final.
Main draw 28 players
- 1🇦🇹Dominic ThiemRound of 16 · Lost to Nikoloz Basilashvili
- 2🇧🇪David GoffinFinal · Lost to Grigor Dimitrov
- 3🇧🇬Grigor Dimitrov#135Final · Champion
- 4🇪🇸Roberto Bautista Agut#239Semifinals · Lost to David Goffin
- 5🇱🇺Gilles MullerQuarterfinals · Lost to Roberto Bautista Agut
- 8🇸🇰Martin KlizanQuarterfinals · Lost to Nikoloz Basilashvili
- 9🇷🇸Viktor TroickiQuarterfinals · Lost to Grigor Dimitrov
- 🇬🇪Nikoloz Basilashvili#86Semifinals · Lost to Grigor Dimitrov
- 🇧🇪Steve DarcisQuarterfinals · Lost to David Goffin
- 🇮🇹Andreas SeppiRound of 16 · Lost to Steve Darcis
- Q🇩🇪Cedrik Marcel StebeRound of 16 · Lost to Roberto Bautista Agut
- Q🇩🇪Daniel BrandsRound of 16 · Lost to Martin Klizan
- PR🇵🇱Jerzy JanowiczRound of 16 · Lost to Grigor Dimitrov
- 🇷🇺Mikhail YouzhnyRound of 16 · Lost to Gilles Muller
- 🇲🇩Radu AlbotRound of 16 · Lost to David Goffin
- 🇳🇱Robin HaaseRound of 16 · Lost to Viktor Troicki
- 🇫🇷Adrian Mannarino#61Round of 32 · Lost to Nikoloz Basilashvili
- WC🇧🇬Alexandar LazarovRound of 32 · Lost to Radu Albot
- 🇷🇺Andrey KuznetsovRound of 32 · Lost to Martin Klizan
- WC🇹🇷Cem IlkelRound of 32 · Lost to Viktor Troicki
- 🇧🇦Damir Dzumhur#90Round of 32 · Lost to Andreas Seppi
- WC🇧🇬Dimitar Kuzmanov#366Round of 32 · Lost to Robin Haase
- 🇮🇱Dudi SelaRound of 32 · Lost to Jerzy Janowicz
- 🇨🇭Marco ChiudinelliRound of 32 · Lost to Daniel Brands
- LL🇷🇸Marko TepavacRound of 32 · Lost to Mikhail Youzhny
- Q🇫🇷Mathias BourgueRound of 32 · Lost to Gilles Muller
- Q🇩🇪Maximilian MartererRound of 32 · Lost to Steve Darcis
- LL🇷🇺Teymuraz GabashviliRound of 32 · Lost to Cedrik Marcel Stebe