Has there ever been a 9–2 in the Serie A?

Yes, 2 times.

The first time: January 9, 1938, Internazionale beat AS Bari (Internazionale 9–2 AS Bari).

The last time: September 24, 1950, AC Milan beat Novara Calcio (AC Milan 9–2 Novara Calcio), 76 years ago.

Home wins: 2. Away wins: 0.

Nearby scores

1. 10–1 Never
2. 10–2 Never
3. 10–3 Never
4. 9–1 8 times
5. 9–2 2 times
6. 9–3 1 time
7. 8–1 4 times
8. 8–2 6 times
9. 8–3 Never

All games

1. September 24, 1950 AC Milan 9–2 Novara Calcio
2. January 9, 1938 Internazionale 9–2 AS Bari