Whenever you add in hills, adjust your paces accordingly. When you are running hills, you should pay more attention to effort than the time on your watch. You'll run a slower pace on hills - don't try to maintain your regular pace. Follow these guidelines:
- Easy runs - run the pace at which you could carry on a conversation with a friend while running. Don't start moving drifting into "pace run effort"
- Pace runs with longer intervals - At this pace, you could say a full sentence if you had to, but you would be panting & breathing pretty hard. Don't start moving into "shorter interval effort"
- Pace runs with shorter intervals - At this pace, you could probably only say a few words at a time.