Valorant competitive mode (aka Rated) is set to be released some time next week, according to Riot’s Zeigler. That’s some time between the 22nd and the 27th of June.
Hey everyone, It's been hectic, so I haven't had a lot of time to post. To answer the biggest question: rated (competitive mode) will likely be out some time next week. We're spending this week putting together that release and making sure it is good. =)
— Ziegler (@RiotZiegler) June 15, 2020
Well, finally…
How long to get my rank?
As we currently understand it, you’ll need to play 20 unranked matches before getting into competitive mode, but if you already killed it in the beta you will be allowed jump straight in. From there you’ll need to play five ranked matches to officially get your rank.