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Half is a 21.0 km road ultra of Two oceans Marathon 2025 in South Africa. The race starts on April 11, 2026.
By gradient, 20% of the distance is uphill, 25% downhill and 54% flat. The longest climb runs 1.4 km at an average 6.4% grade (91 m of vertical). The longest descent runs 2.1 km at 4.9% (101 m of vertical). The steepest climb averages 15.3% over 0.2 km. The steepest descent drops at 11.2% over 0.3 km. Surface: 98% road. Flat-equivalent effort: 21.6 FlatKM.
The course is runnable enough that trekking poles are not needed.
Runnable descent is too short to damage the quads: plan the race around climbing and fuelling.
Historically on race day, start temperatures range from 17°C to 24°C, around 21°C at the highest point; the chance of precipitation is about 24%.
This page has the interactive elevation profile, gradient matrix, pacing and nutrition planner and weather climatology for Half.
