The 2026 Maratón Internacional de la Bandera has concluded.

Maratón Internacional de la Bandera

Race complete
Rosario, Argentina · June 28, 2026
clear-day41°·61° high·Windy·Dry
10
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Race Day Weather

clear-day
41°at start
61° high
Windy
Dry

Cool start — fast day potential, big temp swing, moderate wind

A cool 41°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 61°F by later miles, so expect fading conditions as the race progresses. Moderate winds around 18mph may affect pacing on open sections of the course. Moderate humidity at 74% is worth noting for effort level, especially in later miles.

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Pace Calculator

Distance: 26.2mi
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Race Info

The Maratón Internacional de la Bandera starts and finishes at the Monumento a la Bandera in Rosario, Argentina, the monument marking the site where Manuel Belgrano first raised the Argentine flag. Organized by the Asociación Rosarina de Atletismo since its first edition in 2002, the race is held annually in June near Argentina's Flag Day. The 42K course passes Parque de la Independencia and Bulevar Oroño, alongside a companion 10K.

Area Map

Course Map

FAQ

When is the 2026 Maratón Internacional de la Bandera?

The 2026 Maratón Internacional de la Bandera will be held on Sunday June 28, 2026.

Is the Maratón Internacional de la Bandera a Boston Marathon Qualifier?

Yes, the Maratón Internacional de la Bandera is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Maratón Internacional de la Bandera?

The forecast calls for a high of 61°F and a low of 36°F with a 0% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 2 years of data
Avg Temp
54°F
L:42° H:63°
RunScore
8
Conditions
Rain Freq
0%
0 of 2 yrs
Wind8mph
Dew47°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-night
41°/61°-
9
2023
partly-cloudy-night
43°/64°-
8