St. Petersburg 2011
Marin Cilic won the title, beating Janko Tipsarevic 6–3 3–6 6–2 in the final.
Main draw 32 players
- 1🇫🇷Gilles SimonRound of 32 · Lost to Adrian Mannarino
- 2🇷🇸Janko TipsarevicFinal · Lost to Marin Cilic
- 3🇺🇦Alexandr DolgopolovRound of 32 · Lost to Dudi Sela
- 4🇭🇷Marin Cilic#97Final · Champion
- 5🇷🇺Mikhail YouzhnySemifinals · Lost to Marin Cilic
- 6🇪🇸Marcel GranollersRound of 32 · Lost to Igor Andreev
- 7🇷🇺Alex Bogomolov JrSemifinals · Lost to Janko Tipsarevic
- 8🇷🇺Dmitry TursunovRound of 16 · Lost to Potito Starace
- 🇫🇷Adrian Mannarino#61Quarterfinals · Lost to Mikhail Youzhny
- 🇮🇹Andreas SeppiQuarterfinals · Lost to Marin Cilic
- Q🇷🇸Dusan Lajovic#158Quarterfinals · Lost to Alex Bogomolov Jr
- 🇮🇹Potito StaraceQuarterfinals · Lost to Janko Tipsarevic
- WC🇮🇱Dudi SelaRound of 16 · Lost to Dusan Lajovic
- 🇷🇺Igor AndreevRound of 16 · Lost to Andreas Seppi
- 🇫🇷Julien BenneteauRound of 16 · Lost to Mikhail Youzhny
- 🇨🇿Lukas RosolRound of 16 · Lost to Adrian Mannarino
- 🇩🇪Michael BerrerRound of 16 · Lost to Janko Tipsarevic
- 🇩🇪Philipp KohlschreiberRound of 16 · Lost to Alex Bogomolov Jr
- 🇮🇳Somdev DevvarmanRound of 16 · Lost to Marin Cilic
- 🇦🇷Carlos BerlocqRound of 32 · Lost to Philipp Kohlschreiber
- WC🇱🇻Ernests GulbisRound of 32 · Lost to Lukas Rosol
- 🇷🇺Igor KunitsynRound of 32 · Lost to Alex Bogomolov Jr
- WC🇷🇺Ivan NedelkoRound of 32 · Lost to Potito Starace
- 🇫🇷Jeremy ChardyRound of 32 · Lost to Dusan Lajovic
- 🇸🇰Karol BeckRound of 32 · Lost to Somdev Devvarman
- 🇰🇿Mikhail Kukushkin#344Round of 32 · Lost to Michael Berrer
- 🇧🇪Olivier RochusRound of 32 · Lost to Janko Tipsarevic
- 🇪🇸Pere RibaRound of 32 · Lost to Julien Benneteau
- Q🇺🇦Sergei BubkaRound of 32 · Lost to Marin Cilic
- 🇺🇦Sergiy StakhovskyRound of 32 · Lost to Mikhail Youzhny
- Q🇷🇺Teymuraz GabashviliRound of 32 · Lost to Dmitry Tursunov
- Q🇨🇦Vasek PospisilRound of 32 · Lost to Andreas Seppi