The things you say of late really has me worried. If he is on par with Pre-war arc kakashi in speed then this isn't a no diff. She may win but its not a no diff and in terms of durability Hidan rapes. If she wins its high diff.
He is not on par with pre-war Kakashi in speed and that point is invalid for the following reasons:
-Hidan engaged Kakashi and Kakashi simply defended himself from all of his attacks. He did not engage Hidan in an attempt to blitz Hidan in CQC then land a Lighting Blade on him because if he did it would have happened. Their entire plan from the start was to separate Hidan and Kakuzu via Shikamarus Shadow Possession. Kakashi was never intending to blitz Hidan in battle because like I said, go read the manga and watch those episodes, Kakashi never once engaged Hidan in their CQC skirmishes, Hidan always chased him and he ran out and defend when he needed.
-Kakashis speed in the databook is 4.5, Hidans speed is 3.5, the same as Tsunades. Just because Tsunade has not participated in high paced fights like we have seen Hidan in does not mean she is inferior to him in speed. Some fights are portrayed differently than others, some are high paced, some are not. Orochimarus speed is 4.5 and Tsunade kept up with him, pulverizing him with punches during their CQC fight. Does that mean Tsunade is a fast as Orochimaru, Kakashi, Rock Lee, and all other people who have a 4.5 in speed? No.
-How does Hidan rape her in terms of durability? I cant believe you even just said that.
She will win low difficulty, nothing more. They are 6 feet apart, no intel, Tsuande slightly dashes forward and explodes his torso. Even if he puts his scythe up to guard, per punch is shattering that as well.