Has a FIBA World Cup game ever ended 77-53?
It has. 77-53 has been a FIBA World Cup final 2 times in 2,041 games. The first was France beat Bulgaria on December 3, 2018; the latest was Brazil beat Chile on November 26, 2021.
That makes 77-53 the 222nd most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 78-53 has happened never and 77-54 has happened never.