Except it is what if since you want to embellish a canon fight and add extra features. Edo Madara was restrained and couldn't escape, he lost at that point.
OK, in manga with Kishi logic and plot sure Edo Hashirama looks like he have defeated Edo Madara. But Madara still not defeated yet because he still alive and not being seal yet plus Hashirama doesn't have any sealing jutsu for edo because of that he need Naruto to seal Madara.
I will not say Hashirama win there. Defeating an opponent is not half way act but full act from start to finish and hashirama doesn't have finishing move just restraining Edo Madara is not enough. What if Edo Hashi fought with Edo Madara alone without Naruto and Sai. How he want to seal Edo Madara forever?
Madara can perform Rinne Tensei and get alive back and overpower Hashirama's techniques.
Edit:-
Here in this thread we can use what if/fan fic situation and out of manga battle.
Because of that we have VS section here.