If you're planning your running season, this 2026 Spanish marathon calendar is the ultimate guide to choosing your next goal. Whether you're a beginner or aiming for a new personal best, you'll find dates, locations, and tips here to help you have an unforgettable 42.195 km experience.
Check out our 2026 marathon calendar organized by quarter, learn about registration requirements, and discover what factors you should consider when choosing your ideal race. We also offer key resources such as a guide on how to prepare for a marathon and a complete marathon nutrition strategy to help you perform at your best.
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Complete calendar of marathons in Spain 2026 by quarter
Marathons in Spain: January - March 2026
- Almagro Marathon: January 25
- Murcia Costa Cálida: February 1st
- City of Don Benito: February 8
- Sierra Blanca - Break Your Limits: February 14
- Zurich Seville Marathon: February 15
- Marathon BP Castelló: February 22
- Calderona Marathon: March 1st
- Atom Isasa Trail Xtrem: March 6-8
- Badajoz Marathon: March 15
- Zurich Barcelona Marathon: March 15
- Reventón Trail: March 28
Marathons in Spain: April - June 2026
- Zaragoza Marathon: April 12
- Ibiza Marathon: April 18
- Girona Greenways: April 25
- Rock'n'Roll Madrid: April 26
- Empúries: End of April
- Sherry Marathon: May 3rd
- Holy Grail: May 4th
- Martínez Fiz (Vitoria): May 10
Marathons in Spain: July - September 2026
- Solidarity Jaén: July
- Boedo River: August
Marathons in Spain: October - December 2026
- City of Logroño: October 4
- Quixote Marathon: October
- Tui Palma Mallorca: October 18
- San Sebastián: November 22
- Elche-Alicante: November 29
- Granada: November
- Toledo: November 15
- Corralejo Grandes Playas: December
- Lanzarote: December
- Valencia Trinidad Alfonso Zurich: December 6
- Generali Málaga: December
How to choose the perfect marathon for you?
Based on your experience level
If you're new to distance running, choose a marathon with a flat course , good organization, and moderate weather. Large cities like Valencia, Barcelona, or Seville are excellent options for beginners.
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Depending on the type of route and elevation change
Looking to achieve your personal best? Choose fast, flat routes. Options include routes with low elevation gain (Valencia, Seville, Barcelona) and routes with high elevation gain (Sierra Blanca, Atom Isasa Trail Xtrem, Reventón Trail).
Depending on the date and the weather
Spring and autumn are ideal because of their mild temperatures. Avoid the warmer months if you're not used to the heat.
Requirements to participate in a marathon in Spain
You must be at least 18 years old . Most tests require:
- Medical certificate or declaration of responsibility.
- Official registration (some require prior experience or being a member of a federation).
Check the event website to register correctly.
Nutritional preparation to face the 42 km
A well-planned marathon nutrition strategy is essential:
- Days before: increase carbohydrate intake and reduce the amount of fat and fiber.
- During the race: combine quality energy gels , electrolytes and water with the aim of avoiding gastrointestinal problems.
- Post-race recovery: replenish your energy with a mix of carbohydrates, protein, and electrolytes. This will help prevent muscle problems in the following days. You'll be able to walk down stairs like any other day.
Featured FANTÉ products for a marathon
We recommend including FANTÉ products in your plan, designed to support you before, during and after the race with backed by scientific evidence.
- Hydro 35 Gel and Hydro 45 Gel: carbohydrates and electrolytes, you don't need any other additives to maintain stable energy in accordance with the physiological needs of an endurance athlete.
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- Hydro 45 Gel with caffeine : The caffeine needed for a marathon is around 100-200 mg per dose, 1 or 2 times. Depending on your race duration, choose 1 or 2 doses.
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- Essentials Electrolytes Lite FANTÉ: calorie-free salt capsules, perfect for races with high sweating or if the marathon test is in very hot conditions.
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- Glycogen Recovery Drink : ideal for muscle regeneration and replenishing your glycogen stores for the day after. You need to adapt to the intense stimulus of a marathon, and our recovery drink is ideal for restoring not only muscle function but also liver glycogen.
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