[Scott Johnston]

With no more than 8-10 weeks till you want to run sub 6 minutes for a mile, you do need to start adding in runs that are at your targeted pace.  You can’t do that on rolling or hilly trails. Best to do this on a track.  One day/week, do 10x400m at the target pace (1:30). Take as long a rest as you need at first.  In subsequent workouts, reduce the rest between reps while maintaining the 1:30 time.  When down to 1 min rest go to 4×800 done the same way.    10 weeks may seem like a long time, but genetics and training history will be big factors in the improvement rate.  One steady state run/week of 2×10 min at about 7 min pace with 4 min walking recovery.  One day of strides on the rack 12×100 at a floating fast pace with 3 min recovery.  Any other running now should be very easy and fairly low volume.  On such a compressed schedule, you are essentially going to need to do this on whatever your current aerobic base is. You can’t do enough volume to build aerobic base and handle this intensity without the intensity being affected.  You can go back to base building when you do this thing. But for know the goal  is to get a bit faster.

Good Luck,

Scott