Iran started the competition with a 114-66 win over Palestine.
Mehran Hatami’s men will play Lebanon on Tuesday.
The WABA Championship is a tournament between the national teams of the West Asia region.
It was first held in Beirut in 1999 and is the main qualifying tournament by the West Asian nations for the FIBA Asia Championship.
Iran is the most decorated team with six titles.
The points system will decide the zone champion and the top four will qualify for the 29th edition of the 2017 FIBA Asia Cup, to be held in Lebanon from August 10 to 20.