Okay, the furthest I've run in my life has been 5.4k (which was in January of this year) so yesterday's run to my halfway mark wasn't all that remarkable. But, I did run quite a bit faster than I did my 5.4k.
Previous 5.4k: 8.3min per km
Yesterday's 5k: 6.6min per km
Now if I could just get it to 6min per km, I'm on the right track.