Sponsored
Gamseong Run 2026
View details
Open
18th Cyber Territory Defense Marathon
Reviews will open after the race
Once the race has taken place, you can share what you noticed about the course, organization, and on-site experience. Your race-day experience can guide the next runner and help organizers build a better event.
Event Date
September 19, 2026 (Sat)
Region · Venue
Seoul · 여의도 한강공원 물빛무대
Registration Period
Jun 17, 2026–Aug 03, 2026
Category · Fee
5km35,000 KRW
10km50,000 KRW
Half50,000 KRW
Race Information
The 18th Cyber Territory Defense Marathon is a running event held at the Mulbit Stage in Yeouido Hangang Park. The race starts at 8:00 a.m., and participants gather at 7:00 a.m.
There are three race options: 5 km, 10 km, and Half. Entries are limited to the first 1,000 runners for the 5 km, 1,500 for the 10 km, and 500 for the Half, so each category may close early.
The 5 km race costs 35,000 KRW and includes a performance T-shirt, and no timing chip is used. The 10 km and Half races cost 50,000 KRW each, and timing chips are used for both.
Registration runs from June 17, 2026, to 1:00 p.m. on August 3, 2026. Groups of 40 or more receive a 10% discount and a booth/banner benefit, and race packets are shipped by courier about one week before the event.
Refunds are available until 1:00 p.m. on August 12, 2026. After that deadline, applications, changes, cancellations, and refunds are not allowed. If the event is suspended due to natural disasters or force majeure, the entry fee will not be refunded, so please check your schedule before registering.
Participant reviews
Review writing not open yet
Review writing opens at Sep 19, 2026 7:00 AM (KST). Please come back after participating in the race.
Edition history
Related articles
LSDlong run
What Is LSD Training? A Complete Guide to Long Slow Distance Running for Marathon Runners
Everything you need to know about LSD (Long Slow Distance) training — what it is, why it works, how to set your pace, and how to fit it into your weekly schedule.
trainingsummer running
The Complete Guide to Running Through Summer Heat
Temperatures above 30°C (86°F) don't have to mean skipping runs. From the science of heat stress to optimal timing, hydration strategy, and heat acclimatization — a complete breakdown of how to keep training through summer without getting hurt.
Recommended races in this region
What about other races in Seoul?
Official Notice and Precautions
• The information displayed on this page is based on materials submitted by the event organizer and publicly available information.
• Details such as schedule, venue, participation fees, and benefits are subject to change. Please verify all final details directly with the event organizer.
• KorMarathon is a simple information platform and does not participate in the actual operation, payment, refund, etc. of each event, and does not assume any legal responsibility.
• Registration may close early on a first-come, first-served basis. Please be sure to verify final details such as links, refund policies, and souvenirs in each event's official notice.