Went for a 6k run last night. Even though its been 2 weeks since my last run, I felt pretty good and I don’t need to stop for a break anymore. So I am now starting to train for longer sprints at the end. Last night I doubled my normal sprint distance, which was too much. I ran out of steam about 100 feet from my front door. This tells me that I have set the distance correct and I just need to train more to make this target distance work.