Last night I ended up jogging around my sub division.  The first lap took me 10' 50".  The next lap was a bit longer at 14' 02".  I drove the loop and found out it is 1.9km.  I hope that within a month or so that loop only takes me 6' 30".  Time will tell.  I used to be able to do it so there is no reason why I can't again.  I'm going to be out there again tonight.  The conditions are slightly against me seeing as it is a windy night here so far.  I'll be sure to let you now how I did.