GAP factor 4.0% slower than flat · net elevation -0 m
Decision summary
Lower than 28% of comparable mapped races
Historical race-date favourability, not a forecast
Verified GPS route
Quick answers
RaceIndex has a GPS course file for Portland Coastal Marathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.
The Portland Coastal Marathon route has 715 m of ascent, 715 m of descent and an estimated 4.0% grade-adjusted pace penalty versus a flat route.
The Portland Coastal Marathon route starts at Weymouth and Portland National Sailing Academy, Portland, DT5 1SA and finishes at Weymouth and Portland National Sailing Academy, Portland, DT5 1SA. Underfoot, expect coastal trail on the South West Coast Path (exposed limestone peninsula terrain). It passes Isle of Portland, South West Coast Path and Weymouth and Portland National Sailing Academy. Self-navigation event: runners download the route in advance and follow the coast path with no course markers (keep the sea on your left for loop 1 and the opposite for loop 2).
Traditional earbuds and noise-cancelling headphones are not permitted for safety on the coastal path. 4.
Its normalised GAP factor is 4.0% slower than a flat course, with about 715 m of total ascent.