Has there ever been a 9–5 in the Eredivisie?

Yes, 1 time.

The only time: August 28, 1960, Feijenoord beat Ajax (Feijenoord 9–5 Ajax).

Nearby scores

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