My initial workouts have been more about working around my recent hamstring issue than doing my MHR and speed work. This has been the smart thing to do, because I really don't want to make this a prolonged injury like I did when I was having SI joint issues and didn't take it seriously enough. However, on Thursday I finally had a workout where I did a pretty good job of keeping close to MHR and stopped because I had done enough for someone 7 weeks out from his event rather than because I was worried about my hamstring. Below is my HR chart. It wasn't as tight a range as I expect late in training, but given where I am in the process, I'm pretty happy with it.