Las Rozas will bid farewell to 2026 with 5K and 10K races

Plan your race pace

Las Rozas will see out 2026 on Thursday, Dec. 31, with two community races of 5 and 10 kilometers and a family walk of about five kilometers. The morning event will start and finish at the fairground and offer up to 5,000 places across its three formats, making it one of the Madrid region’s major end-of-year gatherings.

The 10K is scheduled to start at 10 a.m.; the 5K and the noncompetitive walk will begin 10 minutes later. Registration fees rise in stages depending on the date, starting at 8 euros for an individual place in the walk, plus administration fees. A commemorative T-shirt, finish-line refreshments, insurance and a bag-check service are among the announced provisions.

A morning of racing beside the pine grove

The Las Rozas fairground will host both the start and the finish. Its proximity to a pine grove often used by local runners gives the event a familiar setting without making it a mountain race: the available information describes a community road event but does not specify the surface or full course. Live music and a festive atmosphere will accompany the activities.

The event brings together people looking to race against the clock, those who prefer a shorter distance and families who want to take part on foot. That mix of paces and goals explains much of its appeal: participants do not need to treat the morning as a competition to be part of it. The family walk is noncompetitive, while the 5K and 10K races have classifications.

With a stated limit of 5,000 participants, places will be divided among the three formats. That figure is a total cap, not a guarantee that places will be available in every distance. The number of bibs left in each category may therefore change as registration progresses. The morning start also leaves the rest of Dec. 31 free for New Year’s Eve preparations.

Start times and event formats

The longer race will open the program at 10 a.m. with the 10K. At 10:10 a.m., participants in the 5K and those registered for the family and children’s walk, also about five kilometers, will set off. The 10-minute gap separates the starts, but each participant should follow the organizers’ instructions and the information linked to their bib.

Choosing a distance depends on more than the time available. Ten kilometers mean a longer effort and may suit runners who train regularly; the 5K offers a shorter route for ending the year at one’s own pace. The walk, meanwhile, makes it possible to join without chasing a time. These are three different ways to share the same sporting morning, not interchangeable versions of a timed race.

The information published for this edition does not provide a street-by-street route, elevation details, road-closure information or cutoff times. It would therefore be unwise to infer the course profile solely from the nearby pine grove or the town’s name. What has been confirmed is the shared start and finish at the fairground, the advertised distances and the order of the event times.

Age requirements and race categories

Participants in the 10K must be older than 14. The stated minimum age for the 5K is 10, with an adult accompanying participants ages 10 to 12. The walk is intended for all ages, broadening participation beyond people who train to run. Checking age requirements before registering helps avoid confusion, especially when children are taking part.

The 5K and 10K races include men’s and women’s overall classifications, along with a category for masters over 45 and another for local runners. The organizers thus distinguish overall results from participation linked to the town. The available reference information does not specify other age groups or the 2026 awards system, so additional categories should not be assumed.

The family and children’s walk follows a different approach: its noncompetitive format makes it possible to share the course without the pressure of a stopwatch. Participants can enter individually or in groups, although the published fees change when several people register together. The walk’s broad age eligibility and family packages make it accessible to more people, within the overall cap on entries.

Registration fees by tier

Registration is handled through the official website, sansilvestredelasrozas.es, until Dec. 26, as long as places remain. Fees increase as race day approaches: through Oct. 25, entry costs 15 euros for the 10K, 11 euros for the 5K and 8 euros for one person in the walk. For the walk, family packages cost 14 euros for two people, 20 euros for three and 26 euros for four.

From Oct. 26 through Dec. 6, individual prices rise to 18 euros for the 10K, 14 euros for the 5K and 10 euros for the walk. During that period, groups of two, three and four pay 17, 23 and 29 euros. In the final tier, from Dec. 7 through Dec. 26, individual fees become 21, 17 and 13 euros, respectively; family packages cost 20, 26 and 32 euros.

All those amounts carry an additional 0.60 euros in administration fees per registration or package. The difference between tiers can matter for a family: the total depends on the format, the number of participants and when they register. The reference information sets the online registration deadline as Dec. 26 but does not confirm that in-person race-day entries will be available, so that possibility should not be taken for granted.

What the entry includes and where to pick up the bib

Registration includes a commemorative T-shirt and the services announced for race day: solid and liquid refreshments at the finish, insurance and a bag-check service. These provisions help participants plan the morning, although the available information does not specify the refreshments, bag-check conditions or insurance coverage. The entry covers participation and the basic services described, but participants should check the organizers’ terms for specific questions.

Bib pickup is scheduled at Las Rozas The Style Outlets during the three days before the race. On Dec. 28, pickup is available from 1 to 8 p.m.; on Dec. 29, from 11 a.m. to 8 p.m.; and on Dec. 30, from 11 a.m. to 6 p.m. Bibs will not be distributed on race day, so they must be collected before the morning of Dec. 31. The last pickup window ends at 6 p.m. on Dec. 30.

The lack of race-day pickup changes the logistics for people traveling from outside Las Rozas or dealing with work commitments. It also makes it important to check who can collect a bib and what documents are required, details not specified in the available information. Arranging the pickup in advance avoids having an early New Year’s Eve trip depend on an unfinished errand.

A community event to close the racing calendar

New Year’s Eve races turn the final day of the year into an opportunity to run together, and the Las Rozas event combines that tradition with a morning schedule and three ways to take part. Its advertised 5,000-place capacity and noncompetitive walk distinguish it from a race focused only on performance. The community atmosphere sits alongside timed categories for those who want to measure their effort.

The event also fits a date shaped by family plans and preparations for the evening. Starts at 10 and 10:10 a.m. leave time to return home afterward, although the total time depends on distance, pace and personal logistics. No cutoff times or estimated finish duration have been provided, so participants should plan their morning without assuming a particular arrival time.

Between the pine grove, the fairground and the live music, the day’s appeal lies less in a promise of a spectacular course than in its ability to bring runners and families together at the end of the calendar. The confirmed dates, prices and start times describe a specific event; course details and other operational information should be confirmed through the organizers’ official updates as Dec. 31 approaches.