Messenger24 Hours Running from Mem Martins – Sintra
Event summary
The VII Edition of the 24 Hours Running Mem Martins – Sintra is a long-duration endurance running event that will take place on May 9 and 10, 2026, in Mem Martins, Sintra. The event features multiple race options including 24-hour, 12-hour, and 3-hour races, as well as a Night Marathon, all held on a certified closed-loop circuit of 1,609.34 meters.
Open to individual athletes and teams (for the 24-hour race), this competition welcomes both federated and non-federated runners aged 18 and above. The courses offer a unique combination of asphalt, dirt, and wooden boardwalk surfaces within the scenic Parque da Bacia de Retenção de Águas do Algueirão, creating a distinct and varied terrain for participants.
With a festive and challenging atmosphere, the event also includes team competitions and awards for top finishers, making it ideal for endurance athletes seeking to push their limits in a well-organized and supportive environment.
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Plan itInformation
Start times per category/distance:
• 24 Hours: May 9, 12:00 to May 10, 12:00
• 12 Hours: May 10, 00:00 to 12:00
• 3 Hours: May 10, 09:00 to 12:00
• Night Marathon: May 9, 19:00 for 8 hours
Start/finish locations: Parque da Bacia de Retenção de Águas do Algueirão, Av. Professor Doutor Henrique de Barros, Algueirão, Mem Martins
Age categories/divisions:
• Senior Men (18–39 years)
• Veteran Men M40 (40–49 years)
• Veteran Men M50 (50–59 years)
• Veteran Men M60 (60+ years)
• Senior Women (18–39 years)
• Veteran Women F40 (40–49 years)
• Veteran Women F50 (50–59 years)
• Veteran Women F60 (60+ years)
Cut-off times: End of each race time period as scheduled
Registration deadline: May 3, 2026 at 23:00 or until limit reached
Link to full regulation: Official Rules
Surface types: Asphalt, dirt trail, wooden boardwalk
Course format: Certified closed-loop circuit of 1,609.34 meters
Timing method: Electronic controls with three checkpoints along the course
Toilets and aid station placement: Permanent aid stations with food and hydration; soup and drinks available during night and morning meal service
Location
get directionsRaces
Ultra Marathon 24 H Individual
Road Running 24 H Relay 4 athletes
Road Running 12 H
Road Running 3 H
Marathon 42 km
Benefits
🎽 Athlete kit: bib number, technical t-shirt, personal and non-transferable bib
🏅 Finisher prize: medal or trophy for top finishers, participation medal for all
⏱️ Timing + live results with electronic controls and distance tracking
🛟 Safety support: medical teams on site, illuminated course recommended frontals
🛡️ Insurance: included personal accident and liability coverage
🥤 Aid stations: food, hydration, soup, and drinks available throughout event
🚿 Showers and changing facilities provided
🧳 Drop-bag service included
📸 Photography coverage available
🧖 Post-race meals including dinner and breakfast for athletes
🏆 Awards ceremony for individual and team categories
