Trail RunningUTMB Index Races

Séoul International Ultra Trail Running Race

Trail Running covering 50 km to 100 km with up to 4,680 m D+ in Seoul, South Korea

LocationSeoul, South KoreaShow on map(37.5665° N, 126.9780° E)
Date & StatusDate to be announcedDate TBA
Elevation gainUp to +4,680 m

Séoul International Ultra Trail Running Race is an endurance sporting event in Seoul, KR focused on Trail Running. It is part of UTMB Index Races. Key features include City Run, Nature & Off-Road, Mountain, High Altitude.

The race program comprises 4 competitions, including Trail 100 km (100 km, +4,680 m D+), Sky A (50 km, +3,005 m D+), Sky A1 (50 km, +1,135 m D+), and Sky B (50 km, +3,005 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (seoul100k.com).

Official website
Séoul International Ultra Trail Running Race in Seoul (Work: "Mount Fuji from Lake Yamanaka 1994-12-10", Photo: Alpsdake, License: CC0 1.0, Source: Wikimedia Commons)
"Mount Fuji from Lake Yamanaka 1994-12-10" · Photo: Alpsdake · Wikimedia CommonsCC0 1.0
Cropped to 16:9 (960 × 540 px), WebP

Event characteristics

City RunNature & Off-RoadMountainHigh Altitude

Races & distances (4)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
Trail 100 kmTrail Running100 km+4,680 m1,150 m - 3,116 mLoop courseRoute & profile
Sky ATrail Running50 km+3,005 m1,153 m - 2,415 mLoop courseRoute & profile
Sky A1Trail Running50 km+1,135 m1,156 m - 1,633 mLoop courseRoute & profile
Sky BTrail Running50 km+3,005 m1,159 m - 2,421 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Distance
100 km
Elevation gain
+4,680 m D+
Elevation loss
-4,680 m D-
Altitude range
1,150 m - 3,116 m
Gradient (Avg / Max)
9.4 % / 16.9 %
Course format
Loop course
100 km+4,680 m D+
Start (S)Finish (F)
N20406080FS37.5665° N, 126.9780° E

Elevation profile & course telemetry

Altitude from 1,150 m to 3,116 m above sea level (+4,680 m D+, -4,680 m D-)

Peak: 3,116 m·at 52.4 km·Ø 9.4 %
1,150 m1,805 m2,461 m3,116 m0 km20 km40 km60 km80 km100 km3,116 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Séoul International Ultra Trail Running Race take place?

Séoul International Ultra Trail Running Race takes place in Seoul, KR (start area at coordinates 37.5665° N, 126.978° E). The exact date for the next edition is currently open and will be announced by the organizer.

What races and distances are offered at Séoul International Ultra Trail Running Race?

The race program comprises 4 competitions, including Trail 100 km (100 km, +4,680 m D+), Sky A (50 km, +3,005 m D+), Sky A1 (50 km, +1,135 m D+), and Sky B (50 km, +3,005 m D+). The competitions belong to Trail Running.

What is the course layout and elevation profile for Séoul International Ultra Trail Running Race?

The main competition (Trail 100 km over 100 km) is designed as a loop course featuring +4,680 m of elevation gain and -4,680 m of elevation loss, ranging between 1,150 m and 3,116 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Séoul International Ultra Trail Running Race?

Official race regulations, course details, and registration information are provided on the organizer's website (seoul100k.com).