Board Thread:Theories and Speculation/@comment-2143336-20171001221219/@comment-27797856-20171015213341

Mushibrow wrote: Tjphysicist wrote: So is Naruto the only one to jump "ranks" like that then?

Honestly I believe Gaara also had to go through the same stuff, as his dad was killed around the time of chunin exams and he never became chunin for that reason, and also became the next Kazekage. There is also a very huge possibility that the Sand Siblings were promoted to chuunin after the Konoha Invasion as they played a pivotal part in the event. This is also kinda backed up by them going to help Sasuke Retrieval Team, as the Sound Four were apparently around Jounin level, so unless Tsunade was a total asshole and didn't inform the Sand that they would be sending units to face a threatening opponent, the Sand sent some chuunin, unless they were in the same situation as Konoha (lacking units) which is doubtful since they invaded Konoha's turf using sneak/surprise attacks.

And the anime Chunin Exams arc during the Interlude reveals that Kankurou and Temari were at least promoted to chuunin before Konoha 11. But that's not really canon so...