Notes
Felt smooth & even on the first one, then tired but still ok on the second, struggled through the third, & made it about 90 seconds into the fourth before calling it. 90 seconds rest throughout. I didn't even plan on a workout tonight, this was spontaneous since I won't have time for a workout & a long run this weekend, plus the weather was about as good as it gets, not too windy at all. This was successful since I ran hard, didn't have any muscle tightness at all, & I felt tired when I was done.