After solid week 3 runs 1 and 2, run 3 was rougher for me. It was extra hot and my calves were extra sore throughout the run. I'm feeling more intimidated to move on to week 4 and add 2 minutes to each run. Yikes! How the heck do I make it through if I was so ready to walk after my 3 minute runs? Tonight's the night. Let's hope I have good news to report in a few.