Has a World Cup game ever ended 6-3?
Yes. World Cup has seen a final score of 6-3 7 times. It first happened on July 19, 1930, when Argentina beat Mexico, and most recently on September 9, 2025, when Colombia beat Venezuela.
That makes 6-3 the 30th most common final score out of 53 that have ever occurred in World Cup. One point away, 7-3 has happened 2 times and 6-4 has happened 4 times. At one point the score disappeared for 32 years, between 1965 and 1997.