Kammala jumla mai zuwa: Lokacin 2009-2010 shine na uku na Gachinski a kan hanyar ISU Junior Grand Prix. Ya lashe zinare a Belarus da azurfa a Jamus, wanda ya cancanci shi zuwa 2009<unk>2010 ISU Junior Grand Prix Final, wanda ya sanya 6th. Gachinski ya lashe lambar zinare a gasar Coupe de Nice ta 2009. A cikin
A gasar zakarun Rasha ta 2010, ya kasance na 13 a matakin manya kuma ya lashe lambar zinare a matakin matasa. A cikin 6th bayan gajeren shirin a Gasar Zakarun Duniya ta 2010, Gachinski ya sami isassun maki a cikin skate kyauta don ɗaukar tagulla, duk da fashewar shirinsa na quad.