Israeli sprint canoer and former world champion. Competing in three Summer Olympics, he won the bronze medal in the K-1 500 m event at Sydney in 2000.

He was the flag bearer for Israel during the Opening Ceremony of the 2008 Summer Olympics.

He has represented Israel in competition since 1997. 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. At the 2004 Summer Olympics, he finished fourth in the K-1 500 m.

He has also competed in the K-2. At the 2006 European Championships in Raèice, Czech Republic, he won the K2 200m bronze medal with partner Barak Lufan.

At the 2006 ICF Canoe Sprint World Championships in Szeged, Hungary, Kolganov and Lufan finished fifth in the K-2 200 m and sixth in the K-2 500 m.