His senior international debut took place in late September 2005 at Skate Israel but he continued appearing occasionally on the junior level .
Representing Ukraine , Bychenko debuted on the ISU Junior Grand Prix ( JGP ) series in the 2003 -- 04 season .
Bychenko 's senior international debut took place in late September 2005 at Skate Israel but he continued appearing occasionally on the junior level .
Representing Ukraine , Bychenko debuted on the ISU Junior Grand Prix ( JGP ) series in the 2003 -- 04 season .