Races Half marathon · Philadelphia, USA
Philadelphia Distance Run
Philadelphia Distance Run is a flat half marathon in Philadelphia, USA, held each September. The classic fast American half — flat river drives past boathouses. Mid-September is 12-20C. Flat courses like Philadelphia's reward metronomic pacing — the danger is going out faster than goal pace because it feels cheap early.
Page rebuilt 2026-10-01 · race facts not independently verified — confirm dates and entries on the official race site
When
September
every year
Course
flat
Half marathon
Conditions
Mid-September is 12-20C.
Racing this course well
The classic fast American half — flat river drives past boathouses.
Flat courses like Philadelphia's reward metronomic pacing — the danger is going out faster than goal pace because it feels cheap early.
Pick your goal for Philadelphia
Pace charts, weekly structure and timelines for the most common half marathon goals:
We don’t hold a confirmed date for this edition, so any countdown comes from the date you enter here.
Build your training around Philadelphia Distance Run.
RunV works backwards from race day to today and rearranges the weeks when life interrupts. It does not adapt to this specific course — the pacing guidance above is where the course knowledge is.
Everything above stays free and complete — this is an optional next step, not a paywall.
Asked often
- When is the Philadelphia Distance Run?
- It is held each September in Philadelphia, USA. Check the official Philadelphia Distance Run site for the exact date and entry windows.
- Is the Philadelphia Distance Run course flat?
- The classic fast American half — flat river drives past boathouses.
- How should I train for the Philadelphia Distance Run?
- Match your preparation to Philadelphia Distance Run's profile and the September weather, then protect consistency — RunV's adaptive plan recalibrates after every run so one bad week never derails the block.
Not sure what to target? Predict your half marathon time from a recent race →
More half marathon races
Build for Philadelphia — around your actual life
RunV engineers your block backwards from race day in September — and rebuilds it every time training doesn't go to script.
