I did W4 R2 this morning and it almost broke me. For the first time I really questioned whether I was going to get to the end of the 2nd 5 minute run and when Michael Johnson said that's 2.5 mins going I actually yelped. Anyway, I did it but I had literally nothing left.
When I looked at my pace though, I was going way faster than I thought - especially in the first 2 runs - and I think it's leaving me with nothing in the tank for the later runs. I did 4.46km in the 30 mins, including the warm up/down walks and for my age and level of fitness, that's not sustainable.
I was just able to finish today, but I think if I don't slow down I'm just going to run out of steam next week.
Any tips for making yourself sloooow down?