Sidious did not win the fight against Yoda - everyone should be able to see that if they watch the fight (and by the way - Anakin, as young Darth Vader, did not defeat Obi-Wan even that he did attack 90% of the time - "90% attack" that is not a valued argument for being better).
If it is claimed that Sidious did win in some canon - Lucas forgot to put it into the movie (it may mean that Sidious achieved what he wanted - he got the Universe in his hand after this fight - but he did still not win the fight).
Sidious got what he wanted except that he didn't have the power to kill Yoda.
If one watch closely it seems that Yoda has a little bit more power when they got their closeup force fights, though not much and not enough to finish Sidious off quickly (at least my opinion).
Judged only from the movie only one result can be claimed: The fight was a DRAW - no way that one can conclude that Sidious did win THE FIGHT.