Half Marathon 21K is the 21.0km trail race at Ultra Caballo Blanco 2026 (Urique, Mexico). The race starts on February 28, 2026 at 08:00 AM. It starts in Urique. The time limit is 6 h.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 839m+. With 40m/km of climbing, this is a rolling, mostly runnable course. By gradient, 35% of the distance is uphill, 46% downhill and 19% flat. The longest climb runs 10.4km at an average 6.9% grade (718m of vertical). The longest descent runs 6.1km at an average 9.0% grade (550m of vertical). The steepest climb averages 20.1% over 0.5km. The steepest descent drops at 17.5% over 0.3km. Flat-equivalent effort: 25.0 FlatKM.
Poles bring little benefit here: only about 1.3km of pole-friendly terrain.
Quad damage risk is low (index 11 of 100): a few descents worth noting, none of them decisive.
On race day, start temperatures have historically ranged from 15°C to 24°C, with around 21°C at the highest point; the chance of precipitation is about 8%. Heavy rain of 10.0mm or more falls on about 3% of days around this date.
111 finishers completed the 2026 edition. Men's winner: Daniel Chaparro (Individual Neutral Athletes) in 1:35:18. Women's winner: Amelia Alvarez (Individual Neutral Athletes) in 2:15:56.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Half Marathon 21K.
Other distances of Ultra Caballo Blanco 2026100 Mile (160km)·Ultra Marathon 80K (50 Mile) (80.0km)·Marathon 42K (42.0km)·14K Recreational Run (14.0km)
Other editions of Half Marathon 21K2027
Official websitewww.truemessages.org/ultra-caballo
