Halloween 13k and 2 Person Relay 13 km
Not doable· 13 km · 0.8–1.1 h on your feet · 1 wk easy running after
Course, cutoffs and race-day guide
Only 4 weeks before it, where your build needs 6 (the generic figure is 8).
What would change this: if you have raced this distance before, say so under “your running” — an experienced runner needs a shorter build than the generic one; or a higher current weekly volume shortens the build this race needs; or a shorter distance at the same event, or a later edition.