Career
Zamotaykin represented his country at the 1964 Summer Olympics in Enoshima. Zamotaykin took 13th place in the 5.5 Metre with Konstantin Aleksandrov as helmsman and Konstantin Melgunov as fellow crew member. His second Olympic appearance was during the 1972 Summer Olympics in Kiel.
Zamotaykin took 7th place in the Soling with Timir Pinegin as helmsman and Rais Galimov as fellow crew member.
In 1976 Zamotaykin returned to the Olympics.