Marathons in Seoul
Seoul is home to 2 marathons in our database in South Korea, centred on Seoul.
Seoul International Marathon is the largest race in the lineup, typically drawing around 20,000 finishers, while the full spread offers everything from fast urban courses to scenic regional events.
Browse the races below for course maps, elevation profiles, typical weather, and practical race-day detail to help you choose your next start line.
Close to this race
Nearby Marathons
Other races closest to Seoul.
IncheonIncheonSouth Korea· 27 km away
Incheon Marathon
The Incheon Marathon attracts approximately 12k finishers each March through the port city west of Seoul. The course passes Songdo International Business District, Incheon Bridge, and the Wolmido waterfront with views across the Yellow Sea. March's mild Korean spring and flat reclaimed-land terrain make it a fast early-season race in the Seoul metropolitan area.
Next race: Sunday, 28 March 2027
ChuncheonGangwonSouth Korea· 75 km away
Chuncheon Marathon
The Chuncheon Marathon in South Korea's Gangwon province draws about 12,000 finishers each October around the scenic Soyang Lake and city waterfront. Chuncheon is known for dakgalbi and as a filming location for Korean dramas, and the marathon course highlights the lake, Uiamho suspension bridge, and mountain-framed reservoir views. Autumn foliage and cool October weather add to the appeal.
Next race: Sunday, 25 October 2026
GongjuSouth ChungcheongSouth Korea· 124 km away
Gongju Baekje Marathon
The Gongju Baekje Marathon draws approximately 4,000 finishers each October on a historic city road in Gongju, South Korea. The ancient-kingdom history gives the race a distinct cultural frame within Korean road running. The route passes Baekje-era heritage areas, river sections, and roads through the old capital. Rolling terrain with moderate climbs shapes the middle miles.
Next race: Sunday, 19 September 2027
GunsanNorth JeollaSouth Korea· 178 km away
Gunsan Saemangeum International Marathon
The Gunsan Saemangeum International Marathon draws approximately 5,000 finishers each April on an urban and coastal plain road in Gunsan, South Korea. Its pancake-flat terrain makes it a popular speed course in Korea. The route passes harbor districts, flat reclaimed-land roads, and open western-coast scenery. The course is very flat throughout.
Next race: Sunday, 4 April 2027
DaeguDaeguSouth Korea· 237 km away
Daegu Marathon
The Daegu Marathon attracts approximately 28k finishers each April through South Korea's third-largest city in the humid southeast. The course passes the Suseongmot Lake, Daegu Stadium, and the Geumho River parklands on a flat loop through the textile capital of Korea. April cherry-blossom season and mild temperatures make it one of the country's largest spring marathons.
Next race: Sunday, 4 April 2027
HwaseongGyeonggiSouth Korea· 261 km away
Hwaseong Filial Piety Marathon
The Hwaseong Filial Piety Marathon draws approximately 4,000 finishers each May on an urban road in Hwaseong, South Korea. It is one of Gyeonggi Province's biggest spring full marathons and is designed for family festival participation as well as racing. The route passes broad city roads, parkland, and the growing urban landscape of Hwaseong south of Seoul. Gentle undulations are the only breaks on an otherwise flat profile.
Next race: Sunday, 2 May 2027