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March 17, 2026

Revelers on balconies along Calle Estafeta, looking down, waiting for the bull run (encierro).

How Fast Is the Encierro? Timing the Run Section by Section

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Runners run with the bulls through the streets, trying to keep pace as the bulls sprint through.

The Pastores: Pamplona’s Unsung Heroes of the Encierro

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Crowd of revelers during the day, in sun and shade, enjoying the fiesta - shows how crowded it gets.

Cobblestones and Footing: What the Surface of the Encierro Route Is Actually Like

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Runners trying to keep pace with the bulls during the encierro

Night vs. Morning: How the Route Transforms Before the Encierro

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Empty shot of Calle Estafeta - the longest stretch of the bull run route.

The Cabestros: The Steers That Guide the Bulls Through Pamplona

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View of the church steeple of Iglesia de San Saturnino, the patron saint of Pamplona. His church. Located in the Casco Viejo (old city) of Pamplona.

The Suelto: When a Bull Separates from the Herd

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Revelers on balconies waiting for the bull run (encierro) to start

How the Herd Moves: Understanding Bull Behavior During the Encierro

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Crowd of revelers during the day, in sun and shade, enjoying the fiesta - shows how crowded it gets.

The Ayuntamiento Stretch: Running Past City Hall

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Runners navigating the crowded streets of Pamplona during the running of the bulls - Encierro Crowd Dynamics

Running Uphill: The Physics of Santo Domingos Incline

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