Has a FIBA World Cup game ever ended 91-65?
Yes. FIBA World Cup has seen a final score of 91-65 3 times. It first happened on August 12, 2017, when Bulgaria beat Portugal, and most recently on September 8, 2019, when Argentina beat Poland.
That makes 91-65 the 96th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 92-65 has happened never and 91-66 has happened 1 times. Nearly all of its occurrences fall between 2010 and 2039.