Has there ever been a 7–2 in the Brasileirão?

Yes, 3 times.

The first time: September 20, 1998, Portuguesa beat São Paulo (São Paulo 2–7 Portuguesa).

The last time: July 27, 2005, Atlético-PR beat Vasco da Gama (Atlético-PR 7–2 Vasco da Gama), 21 years ago.

Home wins: 2. Away wins: 1.

Nearby scores

1. 8–1 3 times
2. 8–2 3 times
3. 8–3 Never
4. 7–1 12 times
5. 7–2 3 times
6. 7–3 Never
7. 6–1 53 times
8. 6–2 23 times
9. 6–3 7 times

All games

1. July 27, 2005 Atlético-PR 7–2 Vasco da Gama
2. May 16, 2004 Criciúma 7–2 Goiás
3. September 20, 1998 São Paulo 2–7 Portuguesa