Has there ever been a 6–4 in the Brasileirão?

Yes, 5 times.

The first time: November 20, 1977, CRB beat Sport (CRB 6–4 Sport).

The last time: October 7, 2023, Bahia beat Goiás (Goiás 4–6 Bahia), 3 years ago.

Home wins: 4. Away wins: 1.

Nearby scores

1. 7–3 Never
2. 7–4 1 time
3. 7–5 1 time
4. 6–3 7 times
5. 6–4 5 times
6. 6–5 Never
7. 5–3 37 times
8. 5–4 10 times
9. 5–5 2 times

All games

1. October 7, 2023 Goiás 4–6 Bahia
2. November 1, 2006 Atlético-PR 6–4 Vasco da Gama
3. April 6, 2003 Vasco da Gama 6–4 Goiás
4. November 13, 2002 Atlético-MG 6–4 Gama
5. November 20, 1977 CRB 6–4 Sport