Jeju 100M

Course

By gradient, 34% of the distance is uphill, 37% downhill and 29% flat. The longest climb runs 9.8 km at an average 14.3% grade (1408 m of vertical). The longest descent runs 9.1 km at 12.7% (1162 m of vertical). The steepest climb averages 42.0% over 0.2 km. The steepest descent drops at 30.6% over 0.9 km. Surface: 54% trail, 28% road, 7% smooth, and 6% technical.

Poles

Poles bring little benefit here — only about 15.2 km of pole-friendly terrain.

Quad damage

Quad damage risk is high (index 51 of 100), with 65% of the load in the first half: 2 critical descents, the last of them run on already damaged legs. Downhill-specific preparation and a controlled early pace pay off here.

• Control on the marked descents until km 75, target pace until km 120, free after that. Short descents not listed: target pace.
• #1 · 23.5–32.6 km · 1078 m D−, -11.8% · 78% of the race ahead → control
• #2 · 48.4–64.5 km · 1466 m D−, -9.1% · 57% of the race ahead → control
• 124.0–129.0 km · 292 m D−, -5.8% · 14% of the race ahead → even, let go at the end
• 135.4–141.8 km · 454 m D−, -7.1% · 6% of the race ahead → even, first half under control, let go at the end