10-9 round with a knockdown?

[Primo Carnera]

If person A dominates 2 minutes and 50 seconds of a rd and then gets dropped that's a 10/9 round. It does not have to be 2:50 but as an example.

Surely the instance above would be a 9-9 round , no?
If you get dropped , you can't have 10 points can you, even if you win the round?
Funniest think was when Tommy Coyle fought Brizuela and they both went down 4 times, Paul Smith commentating said his scorecard looked like a Sudoku!