PACERTRIP CITY EDITIONAR / RACE GUIDE

21K de Buenos Aires

Name: Medio Maratón de Buenos Aires 2025
Uploaded: 2025-08-26
Description: 21K de Buenos Aires (half marathon de Buenos Aires) is an annual half marathon held in Buenos Aires, Argentina, every August and organised by Asociación Ñandú. It is known for a flat, fast course alon

The city you want to run becomes your next trip.

Buenos Aires
AR

Gaby Lopez · Pexels LicenseFotojose1948 · CC BY-SA 4.0FrontRunner16 · CC BY-SA 4.0Gobierno de la Ciudad de Buenos Aires · flickr (CC BY)

Race date Date TBD: Date TBD
City · Distance: Buenos Aires · 21.1km
Entry fee: ARS 103,500Varies by event and entry period
Status: SoonSee how to enter ↗

Official website ↗

Instagram

D-day as of Oct 12, 2026

About the race Runner stories How to enter Course Race Prep Travel

Why you dream of this race

THE DREAM

ABOUT THE RACE

A day you'll remember,
long past the finish line.

21K de Buenos Aires (half marathon de Buenos Aires) is an annual half marathon held in Buenos Aires, Argentina, every August and organised by Asociación Ñandú.

It is known for a flat, fast course along the Río de la Plata and past city landmarks,

earning it the description “the fastest half marathon course in the Americas”.

It has also been presented as having ranked in the World Athletics top 20.

It is one of Latin America’s largest half marathon, with about 31,500 entries for the 2026 race,

including around 6,000 international runners—more than half from Brazil, followed by Chile and Uruguay.

The road to your own record

Picture the course in advance
and find the pace that fits you.

When the city cheers

Streets lined with cheers, runners all around.
You'll be part of that scene.

The trip that follows the run

Take it slow with the finish still in you,
and meet the city all over again.

#21KdeBuenosAires#BuenosAires#Overseas Marathon#August Marathon#Half marathon

Stories from runners who've been there.

From the joy of finishing to the tough moments — read what runners wrote themselves.

Race reports: 3

Marcela FibbianiRan in 2025

“I ran my third Buenos Aires 21K this morning at Adidas's invitation, and I am happy.”

The runner took part in the third Buenos Aires 21K in 2025 and enjoyed the festive atmosphere shared by runners from several countries despite the strong wind and cold.

Quoted from the original · translated

Original quote

Esta mañana corrí mis terceros 21K de Buenos Aires, nuevamente invitada por adidas, y estoy feliz.

Read the original on Revista 90+10

Candela TorradoRan in 2025

“I ran my first half marathon, the Buenos Aires 21K!”

In 2025, the runner completed their first half marathon at the Buenos Aires 21K and reflected on the significance of the preparation, the challenge and the people who supported them.

Quoted from the original · translated

Original quote

Corrí mi primera media maratón (los 21K de Buenos Aires!).

Read the original on LinkedIn

Carlos David GalloRan in 2010 · Finish time 01:32:56

“On 12 September, I lowered my 21 km time in Palermo to 1 hour 32 minutes 56 seconds for the chip time and 1 hour 33 minutes 19 seconds for the official time.”

At the 2010 Buenos Aires 21K, the runner lowered their personal best to 1 hour 32 minutes 56 seconds after consistent training, and wrote that their family and friends had been a great help.

Quoted from the original · translated

Original quote

este último 12 de septiembre en Palermo logré bajar el tiempo de la distancia para 21 kilómetros a 1:32:56 tiempo neto, 1:33:19 tiempo oficial.

Read the original on Carlos Gallo Corre

We translated a short line from each public race report and summarized the experience. Finish times are as stated by the author, and past editions may differ from this year's weather and operations.

See it on video,
feel it through their stories.

Preview the course and read what runners who went before you wrote.

Finisher vlog

View on YouTube

This may be from a past edition. Check the organizer for this year's course and operations.

The way in that fits you

YOUR ENTRY

How to reach the start line —
start with what fits you.

Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.

Foreign nationals (non-residents)

Entry cost $100

For Argentine non-residents (foreign nationals): Entry fee (general registration through ticketear.com.ar)

Organizer's page

Local Residents

Entry cost ARS 100,000

For Argentine residents: Entry fee (general registration through ticketear.com.ar)

Organizer's page

Elite

Entry cost TBD

An elite-athlete category selected by the organizing committee according to its own criteria based on officially recognized results

Applicants must submit verifiable proof of officially recognized results;

applications cannot be reviewed without it

Organizer's page

Official race website Entry options

From the start line to the finish

RACE WEEK

Your 21.1km

Know the course and time limit, and race day comes into focus.

Runners start · local timeFrom 08:00

Time limit3 hours

Approximately 3 hours (based on 2025 competition regulations)

Event	Start	Entry fee
Half21.1km	08:00	ARS 100,000

21K exclusive early registration price, separate from 42K full marathon. After that, the price rises in stages. The competition is currently sold out (2026-08-11) and new registration is not possible.

START · FINISH

Av. Figueroa Alcorta y Dorrego

near the UBA Faculty of Law

Start · Google Maps

Cutoff
Maximum time to complete the race is 3 hours (per official race description); staggered corral start by declared finish time.

Original course map · maratondebuenosaires.com

In both the start and the finish, Av. of the Núñez district.

It is a circular route course that takes place at the intersection of Figueroa Alcorta and Dorrego.

The total distance is 21.0975km, which is course on asphalt,

heading towards the city center and passing symbolic places of Buenos Aires such as the Faculty of Law, Obelisco, and Planetario.

Aid station is installed at mark at 5, 7.5, 10, 12.5, 15, 17.5, and 20km, and water, sports drink, bananas, etc. are provided (as of the 2025 race).

World Athletics Label: Label Label
AIMS Certified: Member race of the AIMS (Association of International Marathons and Distance Races)

Participant benefits

Timing chip

Finisher medal

Event T-shirt

Bag drop

Race expo

Finisher Ñandú

After the finish: water, sports drink and fruit

To the start line,
step by step.

Pick up your bib, check your wave.
So on race morning, you can just run.

Pick up your bib at the expo

Bib pickup is available from 3 days before the race; no race-day pickup.
August 20 (Thursday) - 22 (Saturday), 2026 — Thursday 10:00 - 18:00, Friday 12:00 - 20:00, Saturday 10:00 - 18:00

Parque Sarmiento

entrance towards Av. Triunvirato

Google Maps Directions

Stations & transport near the venue

Getting to the startStart/finish at Av.
Transit cardEither buy a SUBE card (works on subte, buses, and suburban trains) or, since January 2025, just tap a contactless Visa or Mastercard directly at the gate — both work well for visiting runners. Where to buy

Source · checked Aug 20, 2026 · Source · checked Aug 17, 2026

More details

Getting to the start

Start/finish at Av. Figueroa Alcorta y Dorrego, Palermo, 8:00hs Sunday.

No metro/Subte station, shuttle bus, or road-closure map published on official site. No official parking service; parking prohibited on race streets per official rulebook.

Getting to the finish

Same location as start - Av. Figueroa Alcorta y Dorrego, Palermo.

Transit card

SUBE card

Kiosks (kioskos), most train and subway stations, and Correo Argentino post offices; a kiosk in the Ezeiza International Airport arrivals hall also sells them. Works directly at the gates

You'll need to show ID/passport and fill out a short form to get a SUBE card, and top-ups can be done at station machines or kiosks. Since contactless bank cards and phone/watch NFC payments have been accepted directly on subte and buses since January 2025, many tourists now skip the card altogether — check that your specific bank's card supports contactless.

Where to buy

Source · checked Aug 20, 2026 Source · checked Aug 17, 2026

READY TO RUN

From race morning to after the finish.

Your start time, fuel and bag drop.
Know them ahead and the run feels easier.

Runners start in waves by corral,

with each corral assigned according to submitted finish times (2024 race example: 7:25 for disabled athletes, 7:30 for elites, and then sequential starts between 7:33 and 8:00 by expected finish time).

Your bib (kit) can be picked up at Parque Sarmiento (entrance towards Av.

Triunvirato) starting 3 days before the competition, and on-site pick-up is not possible on the day of the competition.

After the finish, water, sports drink, and fruit will be provided along with the 'Finisher Ñandú' finisher medal (as of the 2025 competition).

Road closures along the course begin around 5:30 a.m. in Palermo and around 6:30 in the city centre, with roads gradually reopening from around 9:30.

Since the 2026 competition is already sold out, runners who want to participate should aim for registration to open around February of the following year.

Times are local to Buenos Aires. Check the latest official information before the race.

A trip built around the race

STAY A LITTLE

MAKE IT A RUNTRIP

The race is one day,
the trip can be longer.

From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.

Esplendor By Wyndham Buenos Aires Plaza Francia

Hotel · 436m

8.2/10(577)

View on Booking.com

Beer Spa Experience

Beer spa experience · ARS 103,580

21K de Buenos Aires

About 21K de Buenos Aires — what makes it special

A day you'll remember,long past the finish line.

The road to your own record

When the city cheers

The trip that follows the run