Calle Estafeta is the longest straight section of the encierro route in Pamplona, stretching for approximately 400 meters uphill through the heart of the old city. Every mozo who runs the bulls will spend significant time on Estafeta, which means it is a section where individual decisions about positioning, pace, and awareness have direct consequences. Estafeta runs slightly uphill and forms a narrow canyon of shuttered shops and centuries-old stone facades. The street is walled in on both sides, which channels the herd toward the center and channels runners into close proximity with the bulls. Estafeta has long been the subject of intense focus from the international running community, and for good reason: what unfolds here in those few minutes fundamentally shapes the character of each day’s encierro.
The Route and the Runner’s Psychology on Estafeta
As runners move up the long straight section of Estafeta, the psychology of the run shifts. According to Mat Dowsett in “Encierro!” (2003), Estafeta is the longest continuous stretch of the route and is walled in by shops and old apartment buildings. The street is narrow and intimidating. The length of the section creates a particular mental test for runners: unlike the more compressed sections at Santo Domingo or the technical challenge of La Curva, Estafeta offers what appears to be space and time. This perception can be dangerous.
“The goal of a first time runner is to not get injured or killed and really to allow the bulls to safely overtake you as you’re running down the street. That’s what it is to run with bulls for the first time.”
Dennis Clancey, Founder of Encierro and member of La Única Peña
The runners Dennis works with understand that Estafeta is not a place to make a stand. It is a place to move, to position yourself correctly, and then to step aside. This requires understanding what is actually happening on the street at any given moment.
Bull Speed and Pace on Estafeta
A common misconception is that bulls slow down as they move up Estafeta. This is incorrect. According to Mat Dowsett in “Encierro!” (2003), the bulls maintain remarkable speed throughout the length of Estafeta despite the slight uphill grade. Dennis confirms the physics of this:
“The bulls are slightly slower on Estafeta, but they’re still running near a four minute mile pace.”
Dennis Clancey, Founder of Encierro and member of La Única Peña
A four-minute-mile pace is approximately 15 miles per hour, or 24 kilometers per hour. A runner at full sprint in ideal conditions might sustain 12 to 15 miles per hour for short distances. This means the bulls are moving faster than most humans can sprint, even on a slight uphill. The herd is in control of the pace, not the runners. The crowd of runners on Estafeta creates a channel effect: the barriers and facades on both sides, combined with the press of runners themselves, direct the bulls toward the center of the street. This is one of the few parts of the route where the herd’s path is largely predictable.
Positioning and Entrance Strategy on Estafeta
Where a runner enters the route and how they position themselves on Estafeta are critical decisions. Dennis is specific about where first-time runners should not be:
“I don’t want them running within the first 60 meters of it because of the different anomalies that might occur in the vicinity of La Curva.”
Dennis Clancey, Founder of Encierro and member of La Única Peña
The reference to La Curva anomalies acknowledges that the entry to Estafeta is where herd cohesion is most variable. A bull that separated from the pack at La Curva, or a herd that took the turn poorly, will carry that disruption into the first stretch of Estafeta. The herd generally normalizes as it moves further up the street.
The psychology of Estafeta as a straight, long section creates temptation for runners who have entered the route early or who want to run “the length” of the street. This temptation conflicts directly with the advice to let the bulls pass. Dennis’s framing of first-time running is not about running the encierro, but about being safely overtaken by the bulls while running.
The Barrier Exits and Escape Routes on Estafeta
According to Mat Dowsett in “Encierro!” (2003), Estafeta has limited exit points from the street itself. The first place where runners can access a barrera (barrier) exit is significant because it determines how long a runner will be in proximity to the bulls.
“The first place where you can kind of exit going up Estafeta is Bajada De Javier.”
Dennis Clancey, Founder of Encierro and member of La Única Peña
Bajada de Javier (pronounced bah-HAH-dah deh HAH-vee-air) is a cross street that opens to the left roughly one-third of the way up Estafeta. This is the first exit where runners can access a barrera. Most of Estafeta is bordered by building facades rather than barriers, which means runners on Estafeta do not have immediate escape options for most of the street’s length. The architecture of the street is itself part of the experience.
As Dowsett notes in “Encierro!” (2003), the street is flanked by shuttered shops, grilled windows, and old signs. These facades create a tunnel-like effect that contributes to the psychological intensity of running Estafeta. Runners on this street are committed to the full experience of moving with the bulls through a narrow, walled space.
The Crowd Effect and Herd Channel
The press of runners on Estafeta creates a dynamic that does not exist on other sections of the route. The combination of the street’s narrow width, the facades on both sides, and the concentration of runners all channels the herd into the center of the street. This is actually a stabilizing effect: the herd is guided by the walls of the street on either side and by the presence of runners. The bulls know where they are going on Estafeta.
This channeling effect also creates density. Runners accumulate on Estafeta because it is the longest section and because it is the most internationally famous part of the route. Experienced runners understand that Estafeta at 8:30 am is congested and will remain congested throughout the run. The pressure of the crowd becomes part of the spatial awareness problem that runners must solve.
What the Mat Dowsett Book Reveals About Estafeta
According to Mat Dowsett in “Encierro!” (2003), the experience of running Estafeta “is as varied as its length and characteristics.” Dowsett describes how runners on Estafeta are often shocked by the speed of the herd and by the brevity of their encounter with the bulls. Many runners arrive at Estafeta intending to run the full length only to realize that the bulls have passed them within seconds, leaving them to continue up the street in the wake of the herd. This is not failure; it is the normal experience of running Estafeta.
The street also offers a return to the uphill nature of the course after the flatter section of Mercaderes. As Dowsett notes, the grade of Estafeta creates a different demand on runners than the flatter parts of the route. The muscles fatigue differently. The breathing is harder. The mental stamina required to process a fast-moving herd while fatiguing is real, which is why positioning and mental preparation before the run are so important.
The Spectator View of Estafeta
For those watching from the balconies or barriers on Estafeta, the section offers extended views of the herd’s progress. According to Mat Dowsett in “Encierro!” (2003), the balconies on Estafeta are often hired out well in advance because they offer the longest continuous view of the bulls on the route. The spectacle of hundreds of runners alongside a fast-moving herd in a narrow stone street is one of the most visually striking moments of the encierro.
What spectators see at Estafeta is the actual speed of the bulls and the actual physical demands on the runners. Video recordings from Estafeta are often more revealing than recordings from other sections because the street’s geometry allows cameras to capture the interaction between runners and herd in detail.
Vocabulario: Spanish Terms for Estafeta and the Route
Calle Estafeta (KAH-yeh es-tah-FEH-tah): The longest straight section of the encierro route, running uphill for approximately 400 meters through the old city.
Bajada de Javier (bah-HAH-dah deh HAH-vee-air): A cross street on the left side of Estafeta, roughly one-third of the way up, and the first barrera exit on Estafeta.
La Curva de Estafeta (lah COOR-vah): The sharp right turn from Mercaderes into Estafeta, characterized by anomalies and herd separation.
Mozo (MOH-tho): A runner in the encierro. The term applies equally to first-timers and veterans.
Barrera (bah-REHR-rah): A barrier or fence that marks the edge of the run route and provides access to the safety zone behind.
Frequently Asked Questions
Should first-time runners attempt to run the full length of Estafeta?
No. First-time runners should focus on positioning themselves correctly, understanding their pace relative to the herd, and allowing the bulls to safely pass. The goal is not to run the length of Estafeta, but to be running when the bulls overtake you. This distinction is critical and is often misunderstood by newcomers to the run.
Why is Estafeta so crowded?
Estafeta is the longest continuous section of the route and is the most internationally famous part of the encierro. It is narrow, walled in by facades, and offers balconies with extended views of the herd. The combination of these factors draws runners and spectators. Crowd density on Estafeta is a permanent feature of the modern encierro.
How fast are the bulls on Estafeta?
The bulls maintain approximately 24 kilometers per hour (about 15 miles per hour, or a four-minute-mile pace) on Estafeta despite the slight uphill grade. This is faster than most humans can sustain at full sprint, which underscores that runners cannot outrun the bulls on this section.
Where can runners exit the route on Estafeta?
The first barrera exit on Estafeta is at Bajada de Javier, approximately one-third of the way up the street. Most of Estafeta is flanked by building facades rather than barriers, limiting exit options. Runners on Estafeta should understand this geography and plan their positioning accordingly.
Run Estafeta with People Who Know Every Meter
Calle Estafeta is where the physics of the encierro become visible and where the mental demands on runners are most evident. Our preparation sessions and running tours break down Estafeta from the perspective of people who have stood on this street before the rockets and understand the crowd, the herd, and the positioning that makes this section manageable. Learn the full route geography or book a walking tour and see Estafeta from the street where it all happens.