It was recently announced in Fist Report #20 that Heroes of the Storm (HotS) is now supported as a 1v1 platform. Test your skills in the Nexus against a fellow DJB-er.
Once matched, party with the other member in game and set up a custom game. The map used should be agreed upon by both players. Both players can select any hero of their choosing for themselves and can fill their teams with AI-heroes as they see fit.
The RoC is still the governing ruleset as this is a PvP competition.