I don't have access to real-time information or data, and my knowledge is based on the text available .
That said, in a prison or jail setting, physical altercations can occur between individuals of different sizes and strengths. It's possible that instances have occurred where a smaller person successfully defended themselves or won a fight against someone larger. However, the outcome of such incidents can vary widely based on numerous factors, including individual fighting skills, situational context, and the involvement of prison staff or security.
It's essential to remember that violence is not a productive or safe way to resolve conflicts. In prison or any other setting, promoting a peaceful and respectful environment is crucial for the well-being and safety of everyone involved. Prison systems often have protocols in place to address and prevent violence and encourage conflict resolution through non-violent means.