Jeju 70K

Course

By gradient, 35% of the distance is uphill, 37% downhill and 28% flat. The longest climb runs 2.9 km at an average 8.8% grade (254 m of vertical). The longest descent runs 3.0 km at 9.9% (300 m of vertical). The steepest climb averages 21.0% over 0.3 km. The steepest descent drops at 15.9% over 0.7 km. Surface: 56% trail, 26% road, and 8% smooth.

Poles

Poles bring little benefit here — only about 3.0 km of pole-friendly terrain.

Quad damage

Quad damage risk is moderate (index 20 of 100), with 15% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.

• Control on the marked descents until km 31, target pace until km 49, free after that. Short descents not listed: target pace.
• 46.7–53.2 km · 453 m D−, -7.1% · 13% of the race ahead → even, first half under control, let go at the end