Track workout intervals (Chester HS) 5:37  0.5 mi (11:14 / mi)
ahr:118 max:138 1c
Early run before school hours. Another hamstring test with unsurprising results. Did a couple 200's at pace just below where hamstring was going to fail. Then tried a third and got negative feedback. Skipped the planned 400's and called it successful, if unsatisfactory, experiment.
1.09, 1.08, 1.21