Continuity mistake: The chariot race begins with 9 chariots. During the race, 6 of them crash (including Messala's), but after Judah crosses the finish line, we see there are still 3 chariots behind him, making a total of 10.
Suggested correction: Sorry, but this has been marked as a duplicate mistake. The original mistake (https://www.moviemistakes.com/film143/entry950) has been listed since 2001.