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
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.
Official event pageWhat 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 10 weeks away. This is how a coach divides that time. The first phase starts now.
01Build4 weeks · Aug 24, 2026 – Sep 20, 2026
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
02Peak3 weeks · Sep 21, 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.
03Taper2 weeks · Oct 12, 2026 – Oct 25, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Oct 26, 2026 – Nov 1, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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