7 intervals of 1 minute running at 7 MPH and 2 minutes walking at 3.5 MPH.
This pace or 6.9 MPH should be enough to get me to a 13:00 1.5-mile run. I was going to start more gradually but also wanted a pace that would keep my fat burning processes going while improving my speed. The run today wasn't too bad, manageable actually. Let's see what happens.