You could almost call this a tempo workout, because you will be running for a longer period of time.
The key phase of this workout is running your 5k pace (or faster) for 1 mile.
I prefer to do this workout on the track.
While going round and round can be boring, counting laps I find more rhythmic and keeps me focused at the task at hand.
The aim for this session is to be consistent.
It’s easy to make that 1st mile faster than the others. The key is to run negative splits.
After the main workout is complete, you can add a 200m recovery walk before you continue on with the post workout phase.