When you think about it, Sasuke is the main character. Those last 2 chapter were seen through Sasuke eye. He give the win to Naruto so he won't bleed to death (technically it's a draw ) so Sasuke record is 1-0-1 and Naruto 0-1-1. Plus Sasuke gets the girl Naruto wants in the 1st place.
What kind of story the rival beat the main character in every aspect?
Be an ass to people - and you'll will win everything you ever wanted.