Anthony Drmic scored all 11 of his points in the second half and the Broncos have started 3-0 for the third consecutive season. Elfrid Payton and Alan-Michael Thompson scored 12 points apiece for Louisiana-Lafayette (1-2).
Boise State used a 9-0 run over a nearly seven-minute stretch of the second half to take control.
The Broncos trailed 52-50 with 7:50 remaining after a basket by Louisiana-Lafayette's Bryant Mbamalu. Drmic hit a go-ahead 3-pointer 26 seconds later to start the decisive run as the Ragin' Cajuns didn't score again until Thompson's basket with 55 seconds left.
Boise State jumped out to a 20-6 lead less than 11 minutes into the game before the Ragin' Cajuns rolled off 19 straight points over a seven-minute span to take a five-point lead. Louisiana-Lafayette led 28-26 at halftime.
Guard Naz Mitrou-Long, whose 2015-16 season ended in December due to hip problems, has been granted a hardship waiver for the coming season, Iowa State said.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.
The Central Intercollegiate Athletic Association says it won't move its headquarters, its basketball tournament or other conference championships from North Carolina, despite