1. The Metaverse is updated twice a day, every 12 hours (I'm guessing they go by the Michigan clock, because that's where Stardock is based), so don't expect it to immediately record and process everything (like your rank).
2. You don't get medals for the type of victory, only for having certain numbers of victories (and a 'wounded in action' medal for losses, I think).
3. You only get 1 racial type medal; wait a while for the server to update and then check again to see if your Drath medal has been changed to a Drengin one. The medal reflects which race you play the most - since you only have 3 or so recorded games, it will probably just keep changing to reflect your latest game until you use 1 race enough to make it a majority.