Ultra de los Castillos

Friday, 30 October 2026

Ultra 100K

100km D+ 2150m

Maratón 42K

42km D+ 1170m

Trail 15K

15km D+ 349m

Ultra de los Castillos 2026: Registration

The Ultra de los Castillos is a trail race in southern Extremadura starting and finishing in La Parra (Badajoz): a night-time 100K with 2,150 m of climbing, a 42K marathon with 1,170 m and a 15K trail. 2026 is its second edition.

Registration closed

Registration closes: 5 October 2026

Registration closed

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Top gear for Ultra de los Castillos

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Picked for this race's terrain, distance and elevation gain.

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Seasonal kit

Ultra de los Castillos runs into the night: low-light kit

Main and backup headlamp, battery, pre-dawn layers and night-time fuelling.

See the full kit

You may also need: Rain and Mud Trail Running Kit 2026: What to Bring to a Wet Race

Gear up for Ultra de los Castillos

Buying guides with the best value for money, picked for this kind of terrain.

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Entry fees by distance

Distance	Elevation	Price	Time limit	Actions
Ultra 100K100K	2,150m D+	Check website	24h	Closed
Maratón 42K42K	1,170m D+	Check website	10h	Closed
Trail 15K15K	349m D+	Check website	4h	Closed

How to register

1
Go to the official race website using the registration button.
2
Select the distance you want to run.
3
Fill in the form with your personal details and federation license (if required).
4
Complete the payment and save your registration confirmation.

What's included in your entry?

Race bib with timing chip, aid stations along the course, accident insurance during the race, access to finish line services (physiotherapy, showers, finisher meal) and an event t-shirt or memento.

Registration closed

The registration period for this edition has ended. Check the official website in case there's a waitlist or last-minute spots.

Visit official website ↗

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