Board Thread:Theories and Speculation/@comment-26388300-20150611222229/@comment-1458758-20150815133021

Sakura has basically mastered every move Tsunade has shown in the series and isn't an irresponsible gambler into the bargain. So yes, I'd say Sakura is definitely Kage Level. Especially when you consider the other people who have held/were considered for the position

Kakashi - As awesome as he is, when he was elected Hokage he could no longer use the moves that made him most famous, and even his signature Raikiri became useless to him.

Jiraiya - The two times Jiraiya was nearly killed in his life were fighting Kyuubi Naruto and when he peeped on Tsunade, who we've established Sakura is basically the mimic of.

So yeah, without a doubt, she's Kage level, question answered without another stupid derail into whether or not she matches Naruto and Sasuke.