Why do I do this to myself?

I may have to rethink my rest days. After running for speed yesterday morning, then going to the gym and spending an hour with my trainer, I just didn't have the juice to run the entire 4+ miles this morning.

I ran the first 3 miles, then walked/ran the last 1.3.

I think my trainer hates legs as she seems to try to destroy mine. Although the workouts are full body (at least at this point), the crap she does to my legs always seems a bit extreme.....

So, needless to say, my legs gave out much quicker than my lungs did this morning.

I started the run at 5:59 and burned 782 calories.

Today's stats:
Ran: 4.30 miles
Weight: 247.5 pounds

Here's the summary and path I ran today: