Just in from the first week 5 run and I found this one really hard. I ran a new route today so maybe that had something to do with my struggling to finish it today. Got through the first run and half the second one then my legs just got really heavy and I had to slow to a walk.
Had to walk for a bit longer after that though did do another brief run where ironically I did actually start to feel a bit lighter on my feet though I reckon I'll have to this one again as II doubt I could do the 20 minute one at the end of the week based on today.