Just a off the top of my head from the more famous novels:
The Duel : Antagonist was better, but let the good guy win.
Sword of 3rd Master : Main hero wins even though opponent was better.
Sentimental Swordsman : Bad guy tested his luck and lost even though he should have won.
Horizon Sabre : No fight, bad guy didn't even dare to stand up.
Bordertown : Love wins all, Dagger Li will never lose! Love is always right!
Lots of others which I wont go into details but which of his novels had a 'final boss fight' where the main character straight up wins?