Petaikina/Kurdyukov began competing on the ISU Junior Grand Prix series in 2009. In the 2011–12 JGP season, they finished fourth in Latvia and won bronze in Austria. Their results qualified them for the 2011–12 Junior Grand Prix Final, where they placed fourth. Petaikina/Kurdyukov took the silver medal at the 2012 Russian Junior Championships and were sent to the 2012 World Junior Championships where they finished sixth. In May 2012, the pair ended their partnership.