4/11

 Run 1 mile at 8:45-9:00 mile pace, walk 7 minutes, run 1 mile at 8:35-8:45 pace, walk 7 min, run 1 mile at 8:15-8:25 pace 

Mile 1: 8:40.9 (slightly faster than range by 5 seconds)

Mile 2: 8:27.8 (slightly faster than range by 7 seconds)

Mile 3: 8:12.3 (slightly faster than range by 3 seconds)