Most coverage of ganadería Puerto de San Lorenzo treats it as just another Salamanca bull ranch on a rotating festival poster. What that framing skips over is the actual shape of its Pamplona story: this herd debuted at San Fermín in 2017, was trusted to open the entire nine day festival in both 2018 and 2019, and then disappeared from the lineup entirely. It has not run Pamplona’s streets since, missing seven consecutive editions through 2026, with no ranch given that level of trust two years running usually falling out of rotation quite so completely.

That gap matters to anyone trying to size up a ganadería by its reputation alone. A ranch that opens the festival is, by definition, one the organizers consider a safe, reliable choice to set the tone for nine straight days of running. Puerto de San Lorenzo earned that trust twice, then earned nothing more. Understanding why requires the full record, not just the highlight of those two opening mornings.

This profile draws on the ranch’s own official history page, the Real Unión de Criadores de Toros de Lidia’s current breeder registry, which independently confirms that ownership chain in near identical language, and San Fermín’s own English language encierro statistics archive for the run by run record, cross checked against Spanish press coverage of all three appearances.

A Bloodline Built From Six Purchases Over Three Centuries

The ranch traces to cattle assembled by Gil Flores in the late 17th century, though the herd running Pamplona’s streets today owes almost nothing to that original stock. In 1925 it passed to the Flores Albarrán family, who added cows from Campos Varela and Izaguirre Tejerina bloodlines. The herd was split in 1956, and the portion belonging to Mercedes Flores Sánchez sold in 1958 to María Gascón and brothers Juan Luis and Nicolás Fraile Martín, who changed the brand and bought 100 more cows the same year.

The bloodline that actually defines the ranch today arrived in two later purchases. In 1976 the family added part of the herd of Lisardo Sánchez y Sánchez. In 1982 they bought 30 cows of Atanasio Fernández bloodline from breeder Arturo Gallego, then added another 75 head of the same Atanasio Fernández stock in 1987 and 1988, at which point every earlier bloodline was eliminated from the herd entirely. The ranch’s registered seniority with Spain’s fighting bull breeders’ union dates to April 25, 1982, the same year that Atanasio blood arrived. In 1992, on the dissolution of shared ownership, Lorenzo Fraile Martín became sole owner, and he remains the ranch’s registered representative today, according to the official breeder registry maintained by the Real Unión de Criadores de Toros de Lidia, Spain’s national fighting bull breeders’ association, which independently confirms the ranch’s full ownership chain in near identical detail to its own site. The cattle graze three properties across two provinces: the namesake finca Puerto de la Calderilla in Tamames, Salamanca, plus two smaller holdings, Justicia and Hornos de Sacristanía, in Salorino, Cáceres.

The Atanasio Line That Isn’t Pamplona’s Other Atanasio Line

Puerto de San Lorenzo’s declared bloodline is Atanasio Fernández by way of Lisardo Sánchez, a specific branch within the wider Atanasio Fernández family of encastes. That distinguishes it from Dolores Aguirre, another ganadería already profiled on this site, which reaches Vistahermosa through a different Atanasio descended branch entirely, the Atanasio Fernández Conde de la Corte line. The two ranches share a great grandparent bloodline without sharing the specific branch that shapes how their cattle actually look and move. For how that branching system works across all of Pamplona’s ganaderías, see this site’s full breakdown of toro bravo bloodlines and the encaste system.

The Lisardo Sánchez branch of Atanasio Fernández has its own documented physical signature, distinct from the wider Atanasio type. Breed genealogists describe it as lower in stature than typical Atanasio stock but thicker limbed, with a more convex profile and horns that trend toward the wide, downturned acapachado shape rather than the narrower veleto type. The curling of the coat across the forehead and face, a trait breeders call carifosco, sometimes extends across the neck and shoulders as well. Black is the dominant coat color, with dark brown black and speckled variants common, and red, chestnut, and roan animals appearing less often.

Pigs Under the Same Oaks as the Bulls

What no other ganadería profile on this site has to mention is that Puerto de San Lorenzo runs a second livestock operation on the exact same land as its fighting bulls. According to the ranch’s own official site, Iberian pigs are born and raised at the Puerto de la Calderilla finca living freely among the same encinas, the holm oaks that also shade the toros bravos, feeding on the acorns those century old trees drop each autumn. The ranch describes the pigs as raised under extensive, free range conditions and certified under Spain’s Real Decreto 4/2014, the quality standard governing Iberian ham, shoulder, and cured loin. It is not a tourist add on grafted onto the bull operation. It is a working second herd sharing the same dehesa, and the ranch offers guided visits covering both.

Three Runs, and the Twice Trusted Opening Slot

Puerto de San Lorenzo made its Pamplona debut on July 9, 2017, the third encierro of that year’s festival rather than its opening run. A brown bull named Huracán broke away from the herd at the Santo Domingo incline and ran the entire 848 meter course alone at a sprint, far ahead of both the rest of the herd and the nine cabestros escorting them that morning, one more guide steer than the usual six. Huracán slipped at the Telefónica bend, costing him what might have been a course record, then hooked a runner’s trousers at the callejón entrance before entering the pens alone. San Fermín’s own English language stats archive titled its writeup of that morning “A Hurricane in the Encierro.” The run finished in 2 minutes 22 seconds with zero gorings and four traumatism injuries from falls and trampling, a clean enough debut that festival organizers gave the ranch something rarer the following year.

In 2018, Puerto de San Lorenzo opened the entire festival for the first time, running the first encierro of the year on July 7. Wet pavement from an overnight storm made for a fast, scattered run at 2 minutes 40 seconds, with one runner gored at the Santo Domingo stretch and four more transferred to hospital for contusions. Trust deepened rather than wavered: in 2019, Puerto de San Lorenzo opened San Fermín for a second consecutive year, an honor no ranch earns by accident. That run proved more dangerous, finishing in roughly 2 minutes 36 to 41 seconds depending on the timing method, with three runners gored, two of them in the leg during the final stretch, after a pileup at the callejón involving the cabestros and a bull that had separated from the herd.

That second consecutive opening slot is the high water mark of the ranch’s Pamplona story, and it is also where the story stops. San Fermín 2020 and 2021 were cancelled outright for the pandemic. When the festival resumed in 2022, Puerto de San Lorenzo was not on the lineup, and it has not appeared in any confirmed ganadería roster in the years since, including the confirmed eight ranch lineup for 2026. No source turned up in researching this profile states an explicit reason for the ranch’s non return. What the record shows plainly is the shape of the absence: two consecutive years of the festival’s highest vote of confidence, followed by silence that has now lasted longer than the ranch’s entire run of Pamplona appearances combined.

Frequently Asked Questions

When did Puerto de San Lorenzo first run in Pamplona?
Puerto de San Lorenzo debuted at San Fermín on July 9, 2017, the third encierro of that year’s festival. The run finished in 2 minutes 22 seconds with zero gorings, four traumatism injuries, and a bull named Huracán running the entire course alone after separating from the herd at Santo Domingo.

Has Puerto de San Lorenzo opened the San Fermín festival?
Yes, twice. Puerto de San Lorenzo ran the first encierro of the festival, July 7, in both 2018 and 2019, a distinction earned by very few ganaderías in consecutive years.

Is Puerto de San Lorenzo still running at San Fermín?
No. The ranch has not appeared in Pamplona since its July 7, 2019 run. It was absent when the festival resumed after the pandemic in 2022 and has not returned through the confirmed 2026 lineup, a gap of seven consecutive editions.

What bloodline does Puerto de San Lorenzo breed?
The ranch’s cattle carry Atanasio Fernández bloodline by way of the Lisardo Sánchez branch, added in 1976 and 1982 to 1988, replacing all earlier genetic stock. This is a different branch of the Atanasio Fernández family than the Atanasio Fernández Conde de la Corte line carried by Dolores Aguirre, another ganadería that has run San Fermín.

Every article on the Encierro blog is authored or reviewed by active bull runners with direct experience in Pamplona.


Dennis Clancey

Founder of Encierro

Dennis Clancey started attending San Fermín in 2007 and is a member of La Única Peña, Pamplona’s original peña. He has instructed more than 4,000 clients on how to run the encierro, possibly more than anyone in the history of the run.

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