Anton Zaitcev defeated Ivan Nedelko 6-2 6-4 in the Russia F11 quarter-final on clay. The upset overturned the form book — Ivan Nedelko came in leading the head-to-head 2–0. Anton Zaitcev claimed a first win over Ivan Nedelko in three meetings, narrowing the head-to-head to 2–1.
Zaitcev A. took it in straight sets.
Anton Zaitcev beat Ivan Nedelko 6-2 6-4. Umpiry, "Anton Zaitcev vs Ivan Nedelko — Russia F11 Quarter-final", https://umpiry.com/match/2013-08-19/nedelko-vs-zaitcev-russia-f11-qf?utm_source=cite (as of 19 August 2013).