Has there ever been a 8–3 in the Bundesliga?

Yes, 1 time.

The only time: March 12, 1966, Borussia Mönchengladbach beat 1. FC Nürnberg (Borussia Mönchengladbach 8–3 1. FC Nürnberg).

Nearby scores

1. 9–2 3 times
2. 9–3 1 time
3. 9–4 Never
4. 8–2 5 times
5. 8–3 1 time
6. 8–4 1 time
7. 7–2 17 times
8. 7–3 7 times
9. 7–4 3 times