Went out for my early morning run with the dog at 5.30. Was dark and chilly. I have been deliberately keeping my mileage down around 3-5k so as not to overtax my foot. Only did 3.1k today, but to my surprise when I got home, had done it in 13' 45"... I was aware that I was running fairly fast by my standards but was not hammering it at interval pace. Am v . astonished and pleased with that time. If I kept that up for a full 5k itwould be sub 23 minutes.
Maybe there is something to be said for this short distance business after all.