Workout overview
Distance: 18 km
Zone distribution
Z1: 0 m
Z2: 625 m
Z3: 575 m
Z4: 16800 m
Z5: 0 m
Z6: 0 m
Just try to survive and run the whole thing, even if you need to slow down a little. If you must, feel free to alternate walking and running to complete the distance.