Sore Calves

My calves hurt. I took it easy today. I only ran for about 10 minutes or so. I did some sprints and it was super hot, so I called it a morning.
I have noticed that I'm not as tired at work like I usually am. I don't know if it's mental or in relation to the running. Either way, I'm signing up for the Taiwan Seiko 130th Anniversary Run. From couch to 10k in 7 weeks!