Sakura isn't defeating Kimi, but she's perfectly capable of taking out Sakon.
Tsunade only needs one punch to defeat Jirobo honestly, however, kidomaru's webs and Tayuya's genjutsu might be troublesome. If she manages to beat the genjutsu with pain and gets out then Tayuya is no longer a problem, i think this is likely. The best way she has to beat Kido is if she gets pierced and fools him into thinking she's mortally wounded and takes advantage of the element surprise due to her healing jutsu.
In the end it would be Kimi vs Tsunade, and if she can crack Madara's Susanoo ribcage then she can do worse to kimi's bones. Altough since everyone is bloodlust i'm not 100% sure.