This was the one I've been worrying about - 20mins running with no break. It seemed almost like a misprint at the end of week 5.
I went out last night determined but slightly doubtful... Pleased and chuffed to say I completed it. I've taken on board the advice of slowing down a bit, and it really helped me.
To anyone worrying about W5R3 - don't. Just pace yourself and you will do it.
W6R1 looks like a rest day now!