From some sources I read he did manage to look presidential, but from others, not so much.
Trump will "win" if he looks more or less Presidential and doesn't say anything incredibly stupid. Trump loses if he has a major gaffe or betrays complete ignorance while pretending to know something (i.e., something like "I've been to all the countries in Antarctica" ).
By this standard, I'd say Trump definitely lost. Had quite a few "I never said that/yes you did, it's in the public record" moments, ranted and rambled with some odd stories (Why doesn't anyone call Hannity? )
Also, Hillary can "lose" if she exhibits any health symptoms or seems unlikeable. Hillary "wins" by Trump "losing" and her not "losing".
Didn't show any health symptoms. Unlikable... I don't think so. She wasn't Letterman, but she kept her cool while Trump was doing everything he could to get under her skin.