I just finished a 4.42km running that lasted about 0hh:28mm:1ss !
I usually try and do a speed work session mid week after our weekend actives. Sometimes I recover fast enough to do it on a Tuesday, some times Wednesday, this week it was Thursday. For as long as I can remember I have always focused on Pace for the run throughs but the more I think and feel into the speed work the more I have been just focusing on feeling comfortable with a faster cadence.
Check out some detailed info at my EXHAUST page
Join me in testing out EXHAUST!