Notes
That was really tough. I had to slow it down a few times due to fatigue, which was at least partly caused by the warmer more humid conditions inside. I started at 0.5% slope but reduced it to zero around the 18 km mark. I was nearly ready to pull the pug at 19.5 km, and only slowing down to 4:15/km kept me going to the end. So basically it was too hard to run at that pace for that long under those conditions. Makes me question my ability to run this fast for a whole marathon, but I hope this run helps me in two weeks time.