Yea this is normal. They kind of serve as the prerace events for the Nationwide race. They use to have a morning practice, happy hour and a late afternoon Busch race. This was nice as you could get home, get some sleep and be back early to the track to tailgate for the Cup Race on Sunday.
With the Nationwide race in the evening it makes it tough to go to the track for both and tailgate. So we just watch the Nationwide race on TV and tailgate for the cup race.