When is Backyard Baltasara 2026?
Saturday, September 12, 2026
Race date
Saturday, September 12, 2026
Mieres
20
20 days until the race
Registration opens: June 4, 2026
Registration closes: September 1, 2026
Registration timeline
Registration opens
Jun 4
Registration closes
Sep 1
Add to calendar
Add race dateExpected weather
14° – 23°
Temperature
💧
37%
Rain
💨
11 km/h
Wind
☀️
9h
Sunshine
Race summary
Distance
6.7K
Elevation Gain
250m D+
Terrain
Trail
Difficulty
Elite
Other races in September 2026

Canfranc-Canfranc
Canfranc-Estación
From 6K to 100K through the central Pyrenees from the iconic Canfranc International Station

Trail 2 Heaven
Benasque
Spain and France linked by the mountains: from 17K to 50K along a historic Pyrenean route, with a walking option

Trail Valle de Tena
Panticosa
80 km, 6,820 m of climbing, and a name that lies: the '8K Trail' of the Huesca Pyrenees

Ardisana Trail
Ardisana
15K and 1,000m of gain across the summits of the Ardisana valley (Llanes)

Carreña Trail
Carreña de Cabrales
30K, 9K and a 4.5K night race from Carreña de Cabrales, at the foot of the Picos de Europa

Cross Trail La Triásica
Colunga
15K and 8.8K from Colunga to La Griega beach, with aid station by the sea
