Revamped competitive play will be available sometime after Overwatch launch

As a result, we’ve temporarily disabled Competitive Play for Open Beta so that we can rework the system and make it better.”

Once players advanced in rank from the first to fifth division, they would rank up a tier.

At the time of its disabling, the competitive play mode offered players five tiers: Challenger, Advanced, Expert, Master and Heroic, each with five divisions.