Time~74m
Distance12.0 km
DifficultyModerate
Before week 7, use only if very fresh; otherwise choose a fully easy long run.
Route: Hills are welcome here, but CHECK THE DESCENT PROFILE before setting off, not just distance and pace. The week-2 long run carried 21.6 m/km — double what was prescribed — and put its steepest descent (~11%) at 8.9 km, which is where the lateral knee pain started. Steep downhill at the end of a long run is the single worst placement for it. Otherwise judge effort by grade-adjusted pace, not raw pace: on your usual terrain that is 10-15 s/km.
Instructions
Run
18 km easy6:05–6:35 /km
Steady
22 km steady-fast5:25–5:40 /km
Work
31 km faster5:05–5:20 /km
Cooldown
41 km easy6:15–6:50 /km