It's been awhile since I did my last tempo run. Running at almost marathon pace for most of my runs over the last few weeks has made me feel a little sluggish, so instead of my planned 10k again I did a tempo run of 5.6k. Appx time taken was 29min (5m20s pace).
I really felt good after that run, what surprised me was that I was able to hold pace and did not feel out of breath or tired at the end. I believe that all my marathon endurance runs would also help me in maintaining pace if I were to run a 10k race anytime now. I should put in a few more of these type of runs before the marathon just to stay sharp.