Gorban won the silver medal in 4 x 400 metres relay at the 2001 World Indoor Championships, establishing a national record of 3:04.82 minutes together with teammates Aleksandr Ladeyshchikov, Ruslan Mashchenko and Andrey Semyonov. Gorban won another silver medal in relay at the 2004 World Indoor Championships, together with Dmitriy Forshev, Andrey Rudnitskiy and Aleksandr Usov.