Maratón Internacional de Buenos Aires
The Lowdown
The Maratón Internacional de Buenos Aires is Argentina’s premier long-distance road race and a highlight of the South American racing calendar. Held annually since the 1980s, the event has grown from a national competition into an internationally recognized marathon that attracts elite athletes and recreational runners from around the world. Its long history and reliable organization have made it a key autumn target for athletes seeking fast times, international competition and a chance to experience Buenos Aires’ unique urban culture. The course is a predominantly flat, fast loop through Buenos Aires’ most iconic neighborhoods and landmarks, offering runners scenic riverfront stretches and vibrant city vistas. Participants pass the Obelisco and Avenida 9 de Julio, run along the refurbished docks of Puerto Madero, weave through the colorful streets of La Boca and Caminito, and enjoy the green boulevards of Palermo and the upscale avenues of Recoleta before finishing near the waterfront. The race atmosphere is electric: lively crowds, live music at aid stations, local cheer squads and a carnival-like energy that carries runners across the line. The Maratón Internacional de Buenos Aires is AIMS-certified, a World Athletics Silver Label race, and recognized as a Boston Marathon qualifying event, making it both a culturally rich experience and an attractive choice for athletes chasing personal bests and qualification standards.
Race Day
Weather Forecast
Elevation
Terrain Profile
Relatively flat course
Participants
Field Size
Large field
Crowd Rating
Spectator Support
Excellent spectator turnout
Registration opens for Maratón Internacional de Buenos Aires 2026
Sep 15, 2025Organizers announced that online registration for the 2026 edition (20 September 2026) is now open with early-bird pricing, category caps, and special international travel packages for overseas competitors.
City and organizers confirm course recertification and sustainability measures
Nov 20, 2024The race route was officially recertified by AIMS/World Athletics standards and organizers unveiled new sustainability initiatives for the 2026 event, including reduced single-use plastics, expanded recycling stations, and improvements to aid station logistics.
Boston Qualifier
This race is a certified Boston Marathon qualifying event. Achieve your qualifying standard here on a verified course.
Plaza de Mayo
Historic central square in front of the Casa Rosada where runners pass near the seat of the Argentine government
Obelisco (Avenida 9 de Julio)
Iconic city landmark on the wide Avenida 9 de Julio that the course passes by in the Microcentro
Puerto Madero
Modern waterfront district with restored docks and sleek skyscrapers, offering scenic riverfront running
Bosques de Palermo (Parque Tres de Febrero)
Expansive park area with lakes and tree-lined paths often part of the race route
Reservas Ecológicas Costanera Sur
Urban nature reserve beside the Río de la Plata providing a quieter, green stretch of the course
Estadio Monumental (River Plate)
The city's major football stadium visible from parts of the route near Avenida Libertador
Floralis Genérica
Giant steel flower sculpture in the United Nations Plaza area near Figueroa Alcorta, close to the start/finish zone
Other distances available during the event weekend:
Buenos Aires, Argentina
AR
Average rate for 3-star accommodations near the start line
Eligibility
- Minimum age 18 on race day (participants 16–17 may enter the 21K but not the full marathon)
- Valid photo ID (passport or national ID) required for bib pick-up
- Registered entry is mandatory and entries are non-transferable
- Medical certificate recommending participation in endurance events required at registration or bib collection (must be issued by a physician)
- Compliance with anti-doping regulations and race medical staff instructions
- Participants must start in their assigned wave/corral and wear the official race bib visibly
- No personal support along the course; only official aid stations allowed
- Use of personal audio devices is discouraged and may be restricted in some zones for safety
- Finish time limit: 6 hours (cut-off times enforced at designated points)
- Obey traffic marshals and race officials; failure to follow directions can lead to disqualification
Required Documents
- Valid ID (DNI, Passport, etc.)
- Medical certificate
Entry Methods
- Online Registration
- Charity Entry
- Tour Operator
- Elite/Invited Athletes
- Group/Club Registration
Cancellation & Refund Policy
Full refund minus 10% administrative fee until 60 days before race (by 2026-07-22)
50% refund until 30 days before race (by 2026-08-21)
Bib transfer allowed up to 30 days before race with organizer approval and administrative fee
Deferral to the 2027 edition available until 14 days before race (by 2026-09-06) subject to an administrative fee
No refunds, transfers, or deferrals within 14 days of race start
If the event is cancelled by the organizer for safety or force majeure reasons, participants will be offered a deferral to the next edition or a partial refund as determined by the organizer
The course is AIMS/World Athletics certified and is known for being very flat and fast, running through iconic neighborhoods including Puerto Madero, La Boca, Recoleta and along Avenida 9 de Julio.
Finishers receive a custom finisher medal and a technical race shirt, and there is a post-race recovery area with food and beverage stations plus a beer garden for adults.
The event weekend includes a runners' expo with official merchandise and gear vendors, and a Saturday pasta dinner and kids' races to engage families and youth runners.
There are fully staffed aid stations with water, electrolyte drink and sponges approximately every 3 kilometers, and official electronic chip timing with split times available at multiple course points.
Top finishers in overall and age-group categories receive cash prizes and awards, and organizers recommend using public transportation or designated parking areas as street closures begin early on race morning.
Community
Stories, tips, and race-day snapshots from runners who have tackled this course.
Community Reviews
Learn from fellow runners and share insights that will help the next person toe the line.