제16회 스마일 런 페스티벌 takes place on Sun, Sep 13, 2026 in Seoul, South Korea. The main route is 21.1 km.
- Date
- Sun, Sep 13, 2026
- Start
- Seoul 🇰🇷
- Distance
- 21.1 km
- Level
- Open to all
Hosted by the Korean Dental Association at Peace Park in Sangam-dong, the Smile Run Festival features half-marathon, 10km, 5km, and walking courses to raise awareness and support for patients with oral cancer and facial deformities.
Official event pageWhat this race demands
This half-marathon requires sustained aerobic pacing over a 21.1 km distance to finish efficiently.
Aerobic endurance
The 21.1 km distance requires consistent aerobic output and stamina to maintain pace from start to finish.
Pacing discipline
Managing effort over a half-marathon distance is necessary to avoid early fatigue.
Consume 45–60 grams of carbohydrates per hour to maintain energy levels throughout the duration of the half-marathon.
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
1:45–2:10
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 제16회 스마일 런 페스티벌 is 3 weeks away. This is how a coach divides that time. The first phase starts now.
01Taper2 weeks · Aug 24, 2026 – Sep 6, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
02Race week1 week · Sep 7, 2026 – Sep 13, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Similar races
Organising this race?