Marathon 42K is the 42.0km trail race at Ultra Caballo Blanco 2026 (Urique, Mexico). The race starts on March 1, 2026 at 07:00 AM. It starts in Urique. The time limit is 12 h.
Run the climb at race pace, build your speed on the downhill, and go all out at the finish.
The course climbs 1321m+. With 31m/km of climbing, this is a rolling, mostly runnable course. By gradient, 34% of the distance is uphill, 35% downhill and 31% flat. The longest climb runs 6.5km at an average 12.5% grade (806m of vertical). The longest descent runs 10.4km at an average 8.8% grade (908m of vertical). The steepest climb averages 33.8% over 0.3km. The steepest descent drops at 18.3% over 0.4km. Flat-equivalent effort: 50.1 FlatKM.
Poles bring little benefit here: only about 5.1km of pole-friendly terrain.
Quad damage risk is moderate (index 21 of 100), with 75% of the load in the first half: 1 descent deserves a plan and a couple of downhill sessions before race day.
On race day, start temperatures have historically ranged from 11°C to 19°C, with around 18°C at the highest point; the chance of precipitation is about 10%. Heavy rain of 10.0mm or more falls on about 4% of days around this date.
162 finishers completed the 2026 edition. Men's winner: Francisco Javier Quintero Renteria (Individual Neutral Athletes) in 3:21:54. Women's winner: Sabina Martinez Leon (Individual Neutral Athletes) in 4:27:07.
This page has the full results and splits, a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for Marathon 42K.
Other distances of Ultra Caballo Blanco 2026100 Mile (160km)·Ultra Marathon 80K (50 Mile) (80.0km)·Half Marathon 21K (21.0km)·14K Recreational Run (14.0km)
Other editions of Marathon 42K2027
Official websitewww.truemessages.org/ultra-caballo
