Yeah that's why I said I am not good at dueling, I just can't do that reliably . I probably could eventually if I try often enough but honestly that isn't something I particularly enjoy doing.
Sure- that situational fight can be tough but different tournament locations fight different styles of tournaments. You can go to Vlandia and fight Tournaments were the final is always on horses and a champion has no advantage at all that I can tell (the AI bots are particularly bad with lances right now- that might not last).
The main thing is to eliminate the only threatening competition before that final round- if you can do that even 50% of the time the AI champion will randomly get defeated 20% of the time without you doing anything so that puts your odds of winning already around 70%
As you play more that 70% rises until it is above 90% and you will start telling people, Tournaments are easy! lol