Board Thread:Questions and Answers/@comment-223.27.94.3-20130923045444/@comment-1705035-20131009113045

I think she defeated because if she win, According to the promise between Ruka and Ojousama, Hayate must lose his debt (but he's not in Movies) and He must stop being the butler and marrying her (This still not happend). I think these supporting proof is good enough to tell that Ruka is lose.

PS. This is just a theory. In shonen manga/anime, main charaters almost never lose to the same opponent twice. And Hata-sama is hugh fan of shonen manga/anime. I think he will follow the story like the other shonen story.