106K midnight ultra following the complete GR-33 pilgrimage route
Other trail races within 196 miles
A 106-kilometer ultra-trail race departing Castelló de la Plana at midnight and following the full GR-33 pilgrimage route to Sant Joan de Penyagolosa. With 5,600 meters of elevation gain and a 25.5-hour cutoff, the Castelló-Penyagolosa (CSP) traverses 10 municipalities including Atzeneta del Maestrat, Benafigos, Culla, Villahermosa de Río, and Vistabella del Maestrat before the final climb to the mountain sanctuary. Runners navigate the full night and following day on remote mountain terrain. A UTMB 100K qualifier (5 ITRA points), a 2027 Western States Endurance Run qualifier, and one of Spain's most demanding ultra-trail races, with a field limited to 600 runners drawn by lottery.
Experienced ultrarunners
Castelló de la Plana, Castellón, SpainApril 18, 2026
| Location | km | Elevation |
|---|---|---|
Start – Castelló de la Plana Start | 0.0 | 65 m |
Borriol Aid Station | 8.4 | 183 m |
Bassa Aid Station | 22.9 | 415 m |
Les Useres Aid Station | 31.6 | 399 m |
Atzeneta Aid Station | 41.4 | 410 m |
Benafigos Aid Station | 49.9 | 774 m |
Culla Aid Station | 62.0 | 1,067 m |
Sant Bertomeu Aid Station | 72.4 | 1,030 m |
Vistabella Aid Station | 80.5 | 1,231 m |
Xodos Aid Station | 90.0 | 1,049 m |
Collao Aid Station | 96.8 | 1,300 m |
Sant Joan de Penyagolosa Finish | 106.1 | 1,280 m |
Sign in to see cutoffs, crew access, drop bags, and services for every aid station.
Night temperatures in the Penyagolosa mountains can drop below 10°C in April. Runners spend 8–12+ hours in darkness at elevation.
Spring conditions in the Maestrat mountain range bring unpredictable weather. Rain, wind, and rapid temperature changes are common above 1,000m.
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No recommended gear specified
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