Has a FIBA World Cup game ever ended 89-70?
It has. 89-70 has been a FIBA World Cup final 2 times in 2,041 games. The first was Lebanon beat Jordan on July 1, 2022; the latest was Nigeria beat Guinea on August 27, 2022.
That makes 89-70 the 222nd most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 90-70 has happened never and 89-71 has happened never.