In the match, held at the Daugavpils Olympic Center, Iran’s Parsa Fallah collected 16 points and Latvian Kristians Feierbergs scored 17 points.
The Iranian team had lost to powerhouse Serbia 88-67 in Group B on Saturday.
Iran will play Puerto Rico on Tuesday.
The tournament is being hosted in Riga and Daugavpils, Latvia from July 3 to 11.