Has a FIBA World Cup game ever ended 73-65?
Yes. FIBA World Cup has seen a final score of 73-65 3 times. It first happened on May 28, 1967, when Argentina beat Peru, and most recently on September 4, 2019, when Spain beat Iran.
That makes 73-65 the 26th most common final score out of 863 that have ever occurred in FIBA World Cup. One point away, 74-65 has happened 1 times and 73-66 has happened 1 times. At one point the score disappeared for 35 years, between 1967 and 2002.