Career
He currently serves as an assistant coach of Partizan Belgrade. During his playing career, he played both shooting guard and small forward positions. Kecman started his basketball career with KK Beopetrol and he stayed there until the summer of 2001.
He then transferred to FMP Železnik where he spent the entire 2001-2002 season.
In the summer of 2002, he moved to Partizan Belgrade and stayed there for 2 full seasons before leaving in the summer of 2004. During the 2004-2005 season he played for three different clubs: Makedonikos, Efes Pilsen and Oostende.
In July 2004, Kecman signed with Greek team Makedonikos that will participate in the ULEB Cup next season. In December 2004, Kecman, along with teammate Dušan Jelić, decided to leave the club because of problems with payments.
Only two weeks after, he signed with EFES Pilsen.
Only few months later, Kecman part ways with Turkish club and signed with Oostende, the last club he played for in that season. He played the 2005-2006 season in the Ukraine for Kyiv. In July 2006, he moved back to Partizan Belgrade.
On July 1, 2008, Kecman signed two-year contract with the Greek League club Panathinaikos.
On 16 June 2009, he was waived by the club after only one season. He signed with Partizan Belgrade again on September 1, 2009.
On April 25, 2010, in the title game of the 2009-2010 season of the Adriatic League, Partizan Belgrade topped Cibona Zagreb after overtime in Arena Zagreb, thanks to an off-the-glass three-pointer by Kecman from half-court at the buzzer, bringing the celebration of Cibona players and staff (who already invaded the floor as Bojan Bogdanović scored a corner three-pointer for Cibona with just 06 seconds left on the clock) to an abrupt education The final score was 75–74.
In August 2012 he signed one-year contract with French team Chorale Roanne Basket.
In August 2013, he signed with AS Monaco Basket. He was released after only four games. In September 2015, following the departure of Duško Vujošević, Kecman was named an assistant coach to the new team"s head coach Petar Božić, with whom he played together in many title runs with Partizan.