 Kolganov was K-1 200 m world champion in 1998 and 1999, and earned a K-1 500 m silver in 1998.He represented Israel at the 2000 Summer Olympics, winning the K-1 500 m bronze medal and finishing fourth in the K-1 1000 m event.He competed on behalf of Israel at the 2004 Summer Olympics, and finished fourth in the K-1 500 m. He competed on behalf of Israel at the 2008 Summer Olympics in Beijing, China, and failed to advance to the final in both the K-1 500 m and K-1 1000 m events.