Career
Zaitcev made his Association of Tennis Professionals main draw debut at the 2015 Kremlin Cup where he received entry to the doubles main draw as a wildcard entrant, partnering Richard Muzaev.
Zaitcev made his Association of Tennis Professionals main draw debut at the 2015 Kremlin Cup where he received entry to the doubles main draw as a wildcard entrant, partnering Richard Muzaev.