When it comes to iconic races in Chile, the NB 15K Santiago is always part of the conversation. The ninth edition of this event, organised by New Balance and Demaria Marketing Deportivo, will once again bring together thousands of runners on Sunday, April 12, 2026, at the Parque O’Higgins Ellipse. With two distances—10K and 15K—the race promises a festive atmosphere and a course that blends urban nature with pure running passion. Here’s everything you need to know: event details, course information, training tips and a look at the community that makes this race a true tradition.
A tradition entering its ninth edition
The NB 15K Santiago 2026 is more than just another race; it’s part of a story that began nearly a decade ago and has grown into one of Chile’s most popular running events. Thousands of runners from across the country and neighbouring regions have taken part in previous editions, establishing it as a key fixture on the national calendar.
Its return to Parque O’Higgins reinforces that tradition. Running in one of Santiago’s largest green spaces offers a unique environment where you can enjoy the scenery while pushing your physical limits.
Date, schedule and categories
The NB 15K Santiago 2026 will take place on Sunday, April 12. According to the official schedule, the runners’ area opens at 7:45 a.m., the 15K race starts at 8:30 a.m., and the 10K begins at 8:45 a.m.. The awards ceremony is planned for 10:30 a.m., and the event will conclude around 11:30 a.m. Race kit collection will take place on Friday, April 10 and Saturday, April 11, with the exact location to be confirmed by the organisers.
There will be multiple age categories for both men and women, ranging from 16 years old to 60+, including a specific category for athletes with reduced mobility. This structure ensures fair competition and recognition for all participants.
Distances and courses: 10K and 15K
One of the race’s strengths is offering two distances suited to different runner profiles. The 10K course is designed for those looking to combine speed and endurance on a fast, accessible route. According to the organisers, it’s ideal for chasing a personal best or simply enjoying the experience of a large-scale event.
The 15K race, on the other hand, requires more sustained effort management, making it a perfect intermediate challenge between a 10K and a half marathon. Both routes take place within Parque O’Higgins and will be officially confirmed closer to race day.
Preliminary information suggests mostly flat terrain with a few gentle inclines that require smart pacing. These variations are ideal for testing both your technique and race strategy. If you’ve taken part in previous editions, you’ll know that Santiago’s autumn weather in April, combined with the energy of spectators, makes this event a truly memorable experience.
How to prepare for a 10K or 15K: training essentials
To successfully complete a 10K or 15K, you need a structured training plan. Experts recommend combining easy-paced runs, speed sessions—such as intervals or fartlek—running drills and strength training. Rest days or active recovery are equally important, especially if you train three to five times per week. These principles apply to both distances.
If you’re aiming for the 15K, remember it’s not just “a longer 10K.” Energy demands increase significantly, so your training should include long runs of 14–16 km. A progressive plan of six to ten weeks, gradually increasing volume and intensity, is a solid approach. Scientific evidence also shows that interval training improves lactate tolerance and running economy.
- Plan 6–10 week training cycles combining long runs, intervals and strength sessions.
- Include long runs close to or slightly above race distance (14–16 km for the 15K) to build endurance and confidence.
- Don’t underestimate recovery: aim for at least seven hours of sleep and respect rest days.
- Strengthen your core and legs twice a week to improve efficiency and prevent injuries.
- Pay attention to nutrition and hydration during both training and race preparation.
- Test your race gear in advance; using new shoes or clothing on race day increases the risk of discomfort and blisters.
For a 10K, a 6–10 week plan with three to four weekly sessions is usually enough. Combine easy runs, interval sessions, a longer run and strength or technique work. Avoid increasing weekly mileage by more than 10% to prevent overload. In the final two weeks, reduce training volume (tapering) to arrive fresh on race day.
Race day tips
- Hydrate and eat well the night before: a light, carbohydrate-rich dinner and good sleep will set you up for success.
- Have breakfast at least two hours before with foods you’ve already tested in training.
- Arrive early to warm up properly and position yourself comfortably in the starting corral.
- Warm up gradually: spend 10–15 minutes on mobility exercises and easy jogging.
- Control your pace: avoid starting too fast; aim for a steady rhythm and finish strong.
- Enjoy the atmosphere: the crowd and fellow runners will give you an extra boost—feed off that energy.
The community and atmosphere of NB 15K Santiago
Beyond the physical challenge, the NB 15K Santiago is a meeting point for Chile’s running community. The Parque O’Higgins Ellipse transforms into a celebration with music, entertainment and sponsor stands. Running here means sharing energy with thousands of people who are united by a passion for sport.
Many runners use this event as preparation for longer distances like the half marathon or marathon, while others simply celebrate crossing the finish line. That mix of performance and community is what makes the race special.
How SnapRace helps you prepare for the NB 15K
Planning your training can be complex, but SnapRace makes it easier. With features to create personalised plans, track your runs via GPS and share workouts with friends, it becomes an ideal tool for preparing for a 10K or 15K.
You can also take part in virtual challenges and rankings to stay motivated. For speed sessions, the app allows you to schedule fartlek or hill workouts, and after each run you’ll get detailed insights into pace, distance and effort zones. Check out our guides on fartlek training and hill training to enhance your preparation.
If you enjoy running with others, SnapRace also helps you organise group workouts, create private challenges and compare progress. Download the app and start preparing for your next race. See you at the Parque O’Higgins starting line!
External links: For official registration and details, visit the New Balance 15K Santiago website. For additional training advice, check out this article with 15 tips for preparing a 15K and this 10K training guide.