Races held in the final days of the year, especially on December 31, have become one of the most recognizable popular sporting phenomena in the athletics calendar. Although many of them feature elite athletes and competitive prize money, their real significance lies not in sporting results but in the massive participation of recreational runners, who transform these events into social, festive occasions deeply embedded in urban culture.
The success of these races is largely explained by a unique balance. If recreational runners were removed, many of these events would lose visibility, impact, and meaning. By contrast, if professional athletes were absent, streets and avenues would still be filled, commercial appeal would remain intact, and public interest would continue. The focus therefore shifts away from high performance toward a shared, collective experience.
Spain and San Silvestre as a benchmark for popular athletics
In Spain, the San Silvestre Vallecana stands as the clearest example of this model. Each year it brings together close to 40,000 runners in its popular race, alongside participants in the international event, and sells out its entries just weeks after registration opens. The Madrid race has become an urban ritual, with thousands of runners taking to the streets of Madrid in costumes, wigs, Santa hats, or coordinated outfits, regardless of finishing times or rankings. Its estimated economic impact on the city ranges between 30 and 40 million euros, driven by consumption, hospitality, and year-end urban tourism.
This phenomenon extends across the country. In Barcelona, the Cursa dels Nassos attracts more than 13,000 runners every December 31 and has become a classic year-ending race, with on-course entertainment and costumes as part of its identity. In León, the local San Silvestre draws close to 10,000 participants and awards prizes for the best costumes, reinforcing the blend of sport and celebration. In Alicante, more than 5,000 runners fill the streets in festive outfits or themed groups, while in Vigo and Salamanca, recent editions have surpassed 6,000 entries, supported by strong public attendance and family-oriented activities.
São Paulo: a century of history and 50,000 runners
In Portugal, urban races such as the São Silvestre de Lisboa attract around 14,000 participants, creating a festive atmosphere that goes well beyond competition. In Brazil, the San Silvestre de São Paulo is one of the world’s most iconic popular road races, with 50,000 registered runners in this year’s edition, live television coverage, and an uninterrupted tradition dating back to 1925. The event generates a substantial economic impact for the city through retail, hospitality, and domestic tourism, while costumes and live music are common sights along key sections of the course.
The same model appears elsewhere in Latin America. In Argentina, the San Silvestre in Buenos Aires attracts around 7,000 registered runners, joined by many informal participants without bibs. In Mexico, the San Silvestre race in Mexico City reaches close to 8,000 participants, while in Colombia, the San Silvestre de Chía has expanded its capacity to 6,000 runners. In all cases, the popular character and mass participation outweigh the presence of elite professionals.
Europe and North America: tradition, costumes, and running Santas
The phenomenon is also firmly established across Europe, with distinctive local traditions. In Switzerland, the Zürcher Silvesterlauf exceeds 20,000 participants, many of whom run in costume, accompanied by bells and music through the historic center of Zurich. In Germany, Silvesterlauf races take place in dozens of cities, collectively drawing around 100,000 runners, often finishing amid fireworks. In Italy, the We Run Rome race on December 31 gathers thousands of runners in a night-time circuit through central Rome, while in France, events such as the Corrida des Tanneurs, held on December 26, preserve the tradition of running in costume through city centers.
In the United States and Canada, although the scale is smaller, similar festive events exist. The Brighton Santa Dash brings together hundreds of runners dressed as Santa Claus for charitable causes each December, while Boxing Day races in Canada exceed 800 participants and boast more than a century of continuity. In every case, the value of the event is measured more by participation and atmosphere than by competitive standards.
These year-end races highlight a shared reality: popular athletics has proven its ability to generate social, economic, and emotional impact on a large scale. Crowded streets, costumes, thousands of anonymous runners, and cities fully engaged in the event explain why, on these occasions, recreational runners ultimately outshine professionals. It is no coincidence that many of these traditions are especially well established in countries and cities where the climate is favorable at this time of year, making it easier for sport to become a collective celebration even at the close of the calendar.
