7/22/2015
4.1 mi
32:30
7:56 mi
Saucony Grid Ignition 4 (Ignition 4)
1 mile, 4x400 CI (200), 2x200 SI (100), 1 mile
CRUISE INTERVALS (CI) Run each interval at 10-K pace. To find your 10-K pace, go to runnersworld.com/trainingcalculator.