No.
No one gets to fix tournament results. Tournaments are an Inalienable Right and a place where everyone can get together to see, in a wholly unbiased manner, who is the best swordsman and jouster on the continent.
Furthermore, any form of fixing would be so deeply exploitable we'd basically have to remove it after the first time it was used.
Not fixing the touranment but the draw of who fights who. If the best swordsman is actually the winner in tournaments then it should have 0 effect on the tournament, it simply makes sure you get to see who is better between two people instead of hoping.