Tracing its roots back to 1954, the Ostrava City Marathon is Czechia’s most enduring city road race, celebrated for blending competitive endurance running with local history, culture, and charity. Runners can choose from multiple distances—including marathon (42.2 km), half marathon (21.1 km), 10 km, 36 km relay (6 × 6 km), and a Mini Marathon (approx. 4 km)—all set along a flat and fast urban course that weaves through Ostrava’s industrial heritage and its revitalized green spaces. The race weekend doubles as a festival, offering live music, charity initiatives like the Mini Marathon, and atmosphere-rich start and finish areas at Masarykovo náměstí.
Race Date:
14 September, 2025
The Relay 6×6 km at the Ostrava City Marathon 2025, organised by Maratón klub Seitl Ostrava, takes place on 14 September 2025 from Masarykovo náměstí, Ostrava. Teams of six cover the marathon distance in relay format, each runner completing one scenic city loop section.
Weather based on historical averages.
The Relay 6×6 km at the Ostrava City Marathon 2025, organised by Maratón klub Seitl Ostrava, takes place on 14 September 2025 from Masarykovo náměstí, Ostrava. Teams of six cover the marathon distance in relay format, each runner completing one scenic city loop section.
The Ostrava City 6×6 km Relay is 36km long.
The Ostrava City 6×6 km Relay takes place in Ostrava, Czech Republic.
Runna classifies the Ostrava City 6×6 km Relay elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Relay 6×6 km at the Ostrava City Marathon 2025, organised by Maratón klub Seitl Ostrava, takes place on 14 September 2025 from Masarykovo náměstí, Ostrava. Teams of six cover the marathon distance in relay format, each runner completing one scenic city loop section.
The Ostrava City 6×6 km Relay is 36km long.
The Ostrava City 6×6 km Relay takes place in Ostrava, Czech Republic.
Runna classifies the Ostrava City 6×6 km Relay elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Major City
Relay
Kid friendly
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Ostrava City Marathon 2025 or Maratón klub Seitl Ostrava. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Ostrava City Marathon 2025 website.