Backyard Ultra Calendar — Castile and Leon, August 2026
Castile and Leon hosts Sierra de Gredos, Sierra de Guadarrama, and part of Picos de Europa. Ultrail La Covatilla and Trail Gredos are benchmark events in the northern plateau.
1 race scheduled
No races match these filters.
For your vertical km
Poles, grippy shoes and a light vest for a 1,000 m climb.
#1 · Best OverallBlack Diamond Distance Carbon ZView on Amazon →(opens in a new tab)
#2 · Best OverallSalomon Sense Ride 5View on Amazon →(opens in a new tab)
#3 · Best OverallSalomon ADV Skin 12 SetView on Amazon →(opens in a new tab)
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For a short race
Shoes, socks and sun protection: just what you need to run fast.
- #1 · Best OverallSalomon Sense Ride 5View on Amazon →(opens in a new tab)
#2 · Best OverallCompressport Pro Racing Socks V3.0 TrailView on Amazon →(opens in a new tab)
#3 · Best OverallISDIN Fusion Water Sunscreen SPF 50+View on Amazon →(opens in a new tab)
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For a mid-distance race
Shoes, vest and hydration for 21-42 km without suffering.
- #1 · Best OverallSalomon Sense Ride 5View on Amazon →(opens in a new tab)
- #2 · Best OverallSalomon ADV Skin 12 SetView on Amazon →(opens in a new tab)
#3 · Best Gel OverallMaurten Gel 100View on Amazon →(opens in a new tab)
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For a long race
Vest, headlamp and nutrition for all those hours in the mountains.
- #1 · Best OverallSalomon ADV Skin 12 SetView on Amazon →(opens in a new tab)
#2 · Best OverallPetzl Iko CoreView on Amazon →(opens in a new tab)- #3 · Best Gel OverallMaurten Gel 100View on Amazon →(opens in a new tab)
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For your ultra
A watch with battery to spare, a powerful headlamp and poles: the gear that can't fail.
#1 · Best OverallCoros Pace 3View on Amazon →(opens in a new tab)- #2 · Best OverallPetzl Iko CoreView on Amazon →(opens in a new tab)
- #3 · Best OverallBlack Diamond Distance Carbon ZView on Amazon →(opens in a new tab)
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Explore by country, month and goal
Climate in Castile and Leon: The continental climate imposes extreme conditions. Winters are harsh, with abundant snow in the ranges until May, while July and August bring stifling heat on the plateau and storms at high altitude. Spring and autumn offer the best windows: mild temperatures, accessible peaks, and landscapes in full transformation. Mornings can be freezing even in June, so always go prepared.
Race summary
1
Races
6.706 km
Distance range
150 D+
Elevation range
Aug
Race months
Difficulty
Tips for running in Castile and Leon in august
If running in northern Spain, do not be complacent: fog and rain can appear even in August on the Cantabrian coast.
Carry salt tablets or electrolytes: in August the risk of hyponatraemia is real if you only drink water.
Make the most of cool hours for training: 7-10 AM and after 7 PM are the optimal windows.
Race map
Click a marker to view race details.
Scheduled races
Essential gear + sun protection
Get ready to run in the heat: sun protection and key gear
Black Diamond
Black Diamond Distance Carbon Z
Ultralight carbon Z-pole foldable trekking poles. 137 g per pole in 110 cm length, 33 cm folded. EVA grip and adjustable strap. The trail running reference.
Hoka
Hoka Speedgoat 7
The best-selling trail shoe in the US and an absolute ultra-trail classic. Max Hoka cushioning, a Vibram Megagrip outsole with 5 mm lugs for grip in mud and technical terrain, and a snug Matryx upper. Built to eat up kilometres without punishing your legs in long races.
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