Moscow, Russia | 14-20 October 2013
Delapan unggulan teratas:
1. Richard Gasquet
2. Andreas Seppi (def. champion)
3. Janko Tipsarevic
4. Alexandr Dolgopolov
5. Denis Istomin
6. Horacio Zeballos
7. Joao Sousa
8. Adrian Mannarino
Notable mentions:
Marcos Baghdatis, Ivo Karlovic