Has there ever been a 9–3 in the Serie A?

Yes, 1 time.

The only time: October 15, 1972, AC Milan beat Atalanta (AC Milan 9–3 Atalanta).

Nearby scores

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