Who won the wrestling match? What happened after the wrestling match?

Frederick sets up the match but tells them that they will fight until one of them is thrown to the ground. Orlando manages to get Charles and throw him, knocking him unconscious and thereby winning.

Duke Frederick asks Orlando what his name is, and he replies that he is Orlando, the youngest son of Sir Rowland de Bois. Frederick is not happy to hear this since Sir Rowland was his enemy when he usurped the throne. He wishes Orlando well and departs without giving him any prizes. Celia is ashamed by her father's envious treatment of Orlando, but Rosalind is thrilled because her father was close friends with Sir Rowland.