Hassanzadeh started out playing for his local club Eram Kish Qom and signed his first professional contract with the club in 2004. In his first season with the club, Eram finished runners–up in the league. In 2009 Hassanzadeh left Eram and signed with champions Foolad Mahan and keeps on achieving victories. After years as a professional playing in different national and international teams, Ali Asghar has won several honours, such as the WAFF futsal championship and the Iranian Futsal Super League, among others.
He has been the greatest scorer of the Super League twice and was named AFC Futsal Player of the Year in 2014.
AFC Futsal Championship 2008 and 2010
Asian Indoor and Martial Arts Games: 2007, 2009 and 2013
Confederations Cup 2009
WAFF Futsal Championship: 2007 and 2012
AFC Futsal Club Championship: 2010 and 2015
Iranian Futsal Super League: 2009-10 and 2015-16
Asian Indoor Games top scorer: 2007
AFC Futsal Club Championship top scorer: 2011
Iranian Futsal Super League top scorer: 2012-13 and 2015-16
AFC Futsal Player of the Year: 2014