GAP factor 6.8% slower than flat · net elevation 4 m
Decision summary
Lower than 17% of comparable mapped races
Historical race-date favourability, not a forecast
Verified GPS route
Quick answers
RaceIndex has a GPS course file for Girdwood 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 Girdwood Marathon route has 1,076 m of ascent, 1,073 m of descent and an estimated 6.8% grade-adjusted pace penalty versus a flat route.
The Girdwood Marathon route starts at Alyeska Day Lodge, Girdwood, Alaska and finishes at Alyeska Day Lodge, Girdwood, Alaska. Underfoot, expect soft mountain trails, often wet in October. It passes Winner Creek Trail, Iditarod Trails, Nordic 5K Loop, Glacier Creek and Crow Creek Road. The race is a fundraiser for the Girdwood Nordic Ski Club, supporting trail maintenance and snow-machine grooming.
Headphones and AirPods are discouraged so runners stay alert to wildlife on the trails. 5.
Its normalised GAP factor is 6.8% slower than a flat course, with about 1076 m of total ascent.