Seoul Marathon 2027
- Date
- March 21, 2027
- Location
- Seoul, South Korea
- Distance
- 42.2 km
- Difficulty
- Not rated
- Field
- 20,000 finishers
The 2027 Seoul Marathon takes place on Sunday, March 21, 2027 in Seoul, South Korea. Point-to-point course through central Seoul. Race-week weather is typically 2°C to 14°C.
Training for the Seoul Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
The course
Point-to-point course through central Seoul. Starts at Gwanghwamun Plaza in front of Gyeongbokgung Palace and finishes inside Jamsil Olympic Stadium (1988 Games venue). Mostly flat with long straight city avenues; the one notable climb is the Jamsil Bridge crossing over the Han River around km 34-35. Surface is city roads. Older editions used a loop course; the current course is point-to-point.
Course summary source: fatmarathoner.com
Course map & elevation
Distance
42.5 km
Elevation gain
28 m
Elevation loss
52 m
High / low
38 / 13 m
🛰️ Community-sourced GPX with DEM-corrected elevation — not an organizer-verified course.
Race-week weather
Typical high
14°C
Typical low
2°C
Year-to-year swing
±1.5°C
Rain
1.7 mm/day
Based on 2020-2025 of race-week history, with peak gusts around 19 km/h.
Difficulty
Race facts
- Official race site
- en.seoul-marathon.com ↗
- Start time
- 07:30
- Field size
- 20,000 finishers (2026)
- Boston qualifier
- Yes
Distances: 42.2 km · 10 km
When is the Seoul Marathon 2027?
The 2027 Seoul Marathon takes place on Sunday, March 21, 2027.
Training for the Seoul Marathon?
Coach Icarus builds your plan around your fitness and your schedule.
Predict your finish time
Enter one recent race result and get predicted finish times across 5K, 10K, half marathon, and marathon.
Predicted Finish Time
52:07
Pace / km
5:13
Pace / mile
8:23
| Distance | Predicted Time |
|---|---|
| 5K | 25:00 |
| 10K | 52:07 |
| Half Marathon | 1:55:00 |
| Marathon | 3:59:47 |
Predictions assume similar fitness, course, and conditions — they are a starting point for goal setting, not a guarantee.
More South Korea races
February 28, 2027
Daegu Marathon
Daegu · Marathon
October 16, 2027
Gyeongju International Marathon
Gyeongju · Marathon
October 24, 2027
Chuncheon International Marathon
Chuncheon · Marathon
March 6, 2027
Myrtle Beach Marathon
Myrtle Beach · Marathon
March 7, 2027
Lisbon Half Marathon
Lisbon · Half marathon
March 7, 2027
Los Angeles Marathon
Los Angeles · Marathon