JTBC 서울마라톤 takes place on Sun, Nov 1, 2026 in Seoul, South Korea. The main route is 42.2 km.
- Date
- Sun, Nov 1, 2026
- Start
- Seoul 🇰🇷
- Distance
- 42.2 km
- Level
- Open to all
Your 4-week plan to JTBC 서울마라톤
The Peak phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
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The JTBC Seoul Marathon is a major annual autumn road race in Seoul, featuring a full marathon starting from Sangam World Cup Park and finishing at Olympic Park.
What this race demands
The JTBC Seoul Marathon demands sustained running efficiency and stamina across a full 42.2 km road distance.
Aerobic Endurance
Covering the full 42.2 km marathon distance requires a high level of cardiovascular endurance to sustain continuous running over several hours.
Impact Durability
The sustained pounding of the asphalt road surface demands strong structural resilience in the lower legs and joints to resist late-race fatigue.
A continuous carbohydrate intake of 60 to 90 grams per hour is required to sustain energy levels across the multi-hour marathon duration.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
3:45–4:30
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at JTBC 서울마라톤 is 4 weeks away. This is how a coach divides that time. The first phase starts now.
01Peak1 week · Oct 5, 2026 – Oct 11, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
02Taper2 weeks · Oct 12, 2026 – Oct 25, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
03Race week1 week · Oct 26, 2026 – Nov 1, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is JTBC 서울마라톤?
JTBC 서울마라톤 takes place on Sun, Nov 1, 2026 in Seoul, South Korea.
How long is JTBC 서울마라톤?
The main route is 42.2 km.
What does JTBC 서울마라톤 demand?
The JTBC Seoul Marathon demands sustained running efficiency and stamina across a full 42.2 km road distance.
Who is JTBC 서울마라톤 for?
JTBC 서울마라톤 is open to all participants.
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