They played their first game in Portland , beating their expansion brethren , the Cleveland Cavaliers , 115 - 112 on October 16 .
The Portland Trail Blazers were one of three new teams to join the NBA .
Portland Trail Blazers played Portland Trail Blazers ' first game in Portland , beating their expansion brethren , the Cleveland Cavaliers , 115 - 112 on October 16 .
The Portland Trail Blazers were one of three new teams to join the NBA .