When the fourth set started I remember thinking I would try to get through three minutes ... then my music ran out and I wondered how I'd keep going because I sure didn't want to just watch the timer for seven minutes. So I focused on the part of the display that features a loop of dots that light up one by one to mark your distance. Once around the loop is 400 meters. So I watched the dots light up and did not look at the count-down timer until it got 1/4 of the way around. That made it much easier and before I knew it I'd finished! I ran 40 minutes at 8kph with three 1-minute walks in between. And I felt freaking awesome!
You don't know what you're capable of until you try. All up I went 6.8 klm, about 1.3 klm of that was walking so that means I ran 5.5 klm. I can finally say I ran 5k.