I completed W6R1 yesterday on the treadmill. As I had completed W5R3 on Saturday morning, I thought I could increase my speed slightly on the interval runs! WRONG! I increased from 7kms/hr only up to 7.3km/hr but only just managed the first 5 mins at that rate and had to go back to 7km/hr for the 8 min and final 5 min run....was a toughy but managed it all the same. Haven't looked to see what the next run will be...I will wait until tomorrow to meet my fate!