JTBC Seoul Marathon 2026: Course Guide, Registration & Tips

Seoul’s Biggest Autumn Race On November 1

There are races you run, and then there are races that become part of your running identity. JTBC Seoul Marathon — called “Jema” (제마) by Korean runners — is firmly in the second category. Every first Sunday in November, around 30,000 runners pour out of Sangam World Cup Park and trace a 42-kilometre arc through the beating heart of one of the world’s great cities: past the palaces and plazas of Gwanghwamun, along the Han River bridges, through the downtown streets and out to the Olympic Park that hosted the 1988 Games. It is a point-to-point tour of Seoul’s history compressed into a race morning.

The 2026 edition runs on November 1 and marks the 26th year of a race that has grown from a modest half marathon of 1,300 runners in 1999 to what is widely considered the most culturally vibrant marathon in South Korea. While the Dong-A Seoul Marathon in March owns the World Athletics Platinum Label and the elite speed credentials, JTBC owns something arguably harder to manufacture: an atmosphere. Around 80 per cent of the field is in their twenties and thirties. The crowd support is intense, JTBC broadcasts the race on national television and the whole event has the energy of a street festival that happens to involve 42 kilometres of running.

This year brings the highest entry fees in the race’s history (₩150,000 / USD 150 for the full marathon) and a new tiered lottery system that rewards faster runners with better draw odds. Registration closed in April and the draw has already been made — but if you are holding a bib, this guide covers everything you need between now and the start line at Sangam. If you missed this year, bookmark it: the JTBC lottery opens again in spring 2027 and the preparation window starts now.

November 1 is one of the best days of the year to race in Seoul. The autumn air is crisp, the humidity drops to its second-lowest point of the year and the Bukhansan mountains to the north are often dusted in their first autumn colours. Race day temperatures at 8 AM tend to sit around 6–8°C — cold enough to keep you honest in the early kilometres, perfect for holding pace through the flat middle miles of the course.

Race at a Glance

What Makes the JTBC Seoul Marathon Worth Running?

Korea’s Most Talked-About Autumn Marathon

Among Korean runners there is a saying that goes: “If you miss Jema, your autumn is ruined.” That is only a slight exaggeration. JTBC sits alongside the Dong-A Seoul Marathon (March) and the Daegu Marathon as one of Korea’s “Big 3” major road races — and in terms of cultural pull and social media presence, it eclipses them both. The race is covered live on JTBC television. The start area at Sangam on race morning feels less like a corral and more like a K-pop festival warm-up, complete with music, commercial activations from major sportswear brands and a crowd overwhelmingly made up of younger runners who have trained seriously and are here for a personal best and a good photograph. Neither goal is mutually exclusive.

A Course That Takes You Through Seoul’s Greatest Hits

The route is the pitch and it is a strong one. You start at Sangam World Cup Park — built for the 2002 FIFA World Cup — and spend 42 kilometres running through Seoul’s layered history. The Yanghwa and Mapo bridges over the Han River, the broad avenues of Yeouido (Korea’s financial district), the sweeping plaza in front of Gwanghwamun Gate, the chaos of Dongdaemun and the final stretch into the Olympic Park built for the 1988 Seoul Summer Olympics. You are essentially running between two defining moments in modern Korean history. That is a course that earns its entry fee on scenery alone.

The Weather Window Is Almost Unfair

Early November is arguably the most ideal marathon weather window in Northeast Asia. Seoul’s humidity, which peaks at 80 per cent in July, falls to around 65 per cent by November. Race morning temperatures typically sit between 6°C and 12°C. There is minimal wind, minimal rain risk and the air quality in early November is generally good. If you want to run a fast marathon in Asia’s autumn, JTBC’s timing is hard to beat. The course record of 2:05:29 set in 2019 and multiple sub-2:08 performances from elite men over the years confirm that the conditions produce real times.

Point-to-Point Between Two Olympic Sites

One architectural detail that is easy to overlook: the start is in the park surrounding Seoul’s 2002 World Cup Stadium and the finish is at the Peace Plaza inside Olympic Park, which hosted the athletics events of the 1988 Seoul Olympics. The 42 kilometres between them are not just a race — they are a straight line drawn through 40 years of South Korean sporting history. For anyone who cares about running’s roots in the Olympic movement, that is worth something.

Who Should Run This Race

JTBC suits three types of runner particularly well. First, the serious recreational runner chasing a sub-4 or sub-3:30 on a flat course in ideal conditions. The route and weather deliver. Second, the first-time marathoner who wants a full race experience: a big city, huge support, plenty of company in every corral tier and a finish line worth the training. Third, the international runner for whom Seoul is a destination they want to experience beyond just checking off a race. The city’s food, nightlife and cultural depth make it a trip, not just a race weekend.

How Hard Is It to Get Into JTBC Seoul Marathon?

Very hard. The 2026 registration window lasted exactly two days (April 13-15) and operated as a tiered lottery — the first Korean major to use this system. Faster runners (sub-3:00) get priority in the draw; open-category entrants (no time requirement) compete for whatever spots remain after the higher tiers. There is no accumulating system for repeat non-winners, unlike the Tokyo Marathon lottery. International runners can register through World’s Marathons, the exclusive overseas partner — check availability as spots are limited and the platform sells out independently of the domestic draw. If you are planning for 2027, set a reminder for April registration and set up your Runable account well in advance.

The Course — Kilometre by Kilometre

Editor’s note: JTBC has not published a 2026 course map as of two weeks before race day, and at this point one is unlikely to land before the start. The kilometre breakdown below is FatMarathoner’s best-estimate reconstruction — built from the confirmed Gwanghwamun start and Olympic Park finish, plus the landmarks the race has used for years — not an official route. Confirm against the map in your race pack on expo day.

Km 0–6 — Gwanghwamun Start to the Han River

The opening kilometres swap one crowded start for another: instead of pouring out of Sangam, the 2026 field surges away from Gwanghwamun Square beneath the gate of the former royal palace, with the Bugaksan mountains at your back. Expect the same early chaos as in past years — give yourself the first 1.5 km to find a rhythm rather than racing the crowd. The route heads down toward the Han River, picking up the first bridge crossing (most likely Yanghwa Bridge, based on the race’s past routing) by around km 6.

Km 6–14 — Han River Bridges and Yeouido

This is where the race likely picks up the landmarks that used to sit mid-course: a second bridge crossing near Dangsan and the Yeouido riverside park. Flat, wide and scenic, with good crowd support along the Hangang paths — this was one of the most runnable sections of the old course and there’s no obvious reason the organiser would drop it from the new route. If you’ve settled into goal pace by km 10, you’re on track.

Km 14–21 — Back Toward the City Centre

Expect the route to loop back from the riverside toward central Seoul, picking up a third bridge crossing (Mapo Bridge in past editions) before re-entering the urban core. Half marathon distance should land you back in the vicinity of Gwanghwamun — a natural loop structure for a race that starts downtown and finishes across town. Treat this as your pacing checkpoint: if you’re moving faster than your goal half-marathon split through this stretch, you went out too hard.

Km 21–30 — The Inner City Grind

From here the course should match the back half of past editions closely, since both the Gwanghwamun area and the Olympic Park finish are unchanged: east through Dongdaemun, past Heungjimun Station and into the Sinseol-dong/Gunja Station area — dense streets, thinner crowds, fewer landmarks to lock onto. This is historically where races are won and lost for recreational runners, as accumulated fatigue from the earlier bridges starts biting, particularly in the quads.

Km 30–36 — Gunja Park to Jamsil Bridge

Gunja Park offers a brief green respite before the course drops to the Han River for the fourth and final bridge crossing at Jamsil — the toughest of the four in past years, arriving deep into the third hour of running. Go across it in control; survival mode here turns a 400-metre bridge into a long negotiation with yourself.

Km 36–42.2 — Final Stretch to Olympic Park

Unchanged from past editions: the route rises slightly into Olympic Park, the finish at Peace Plaza sits deeper inside the grounds than first-timers expect, and JTBC’s cameras are typically on the final 200 metres. This is where the photos get taken — stay running, not walking.

Registration

Registration for the 2026 JTBC Seoul Marathon opened on April 13 and closed April 15, 2026. The lottery draw took place on April 17 at 13:00 KST. Registration is now closed for 2026. If you hold a confirmed bib you are set. If not, check the World’s Marathons platform for any remaining international allocation — this is occasionally updated after the main draw.

2026 Entry Fees

These are the highest entry fees in the race’s history. Complimentary individual finisher photos are included for all participants — small consolation, but worth noting for a race at this price point.

2026 Tiered Lottery System

Times must be verified through the Runable app linked to your Kakao Runners Card. There is no accumulating odds system for repeat applicants who have not been drawn in previous years. International runners apply via World’s Marathons.

Race Weekend Schedule

Exact expo dates and race start times for 2026 will be confirmed by JTBC in the official race guide distributed with your bib. All times and venues are based on the 2025 edition pattern. Always verify via the official website.

Expo and Packet Pickup

Weather on Race Day

November 1 is one of the best marathon weather windows in Asia. Seoul’s rainy season is long over and humidity is well below its summer peak. Race morning temperatures at the Sangam start area typically sit in the 6–8°C range — cold enough that a throwaway layer and gloves make sense for the first 10 km, warm enough that you will not be fighting the cold across the full 42 km. Wind is generally calm at around 14 km/h. There is no altitude factor to manage — Seoul sits at essentially sea level. If you are flying in from a warmer climate, plan two to three days of acclimatisation at Seoul temperatures before race day.

Prize Money and Elite Information

Past Results — Defending Champions

2025 JTBC Seoul Marathon — November 2, 2025 (25th Edition)

2024 JTBC Seoul Marathon — November 3, 2024 (24th Edition)

Men’s Course Record

Spectator Guide — Where to Watch JTBC Seoul Marathon

Km markers below follow FatMarathoner’s best-estimate reconstruction of the 2026 route (see Course section above) — not an official map. Locations and metro access are solid regardless of exact kilometre; treat the numbers as approximate.

Where to Stay for the JTBC Seoul Marathon

Book accommodation as early as possible — the JTBC marathon weekend is a major Seoul event and hotels near the course and finish fill well in advance. The SETEC expo venue is in Gangnam-gu (subway: Line 9 — Hangnyeoul Station), so if you want both expo convenience and finish-line proximity, somewhere in the Gangnam-to-Jamsil corridor makes most sense. For pure race morning logistics, a hotel on Line 6 with Hapjeong or Sangam World Cup Stadium as the nearest station simplifies the pre-dawn transit considerably.

International Runners — Visa and Travel

Entry requirements change. Always verify current visa rules at the Korean Ministry of Foreign Affairs website or your nearest Korean consulate before booking travel.

A Short History of the JTBC Seoul Marathon

The race that became the JTBC Seoul Marathon began in 1999 as the JoongAng Seoul Marathon — a half marathon event with around 1,300 participants, organised by JoongAng Ilbo, one of South Korea’s major national newspapers. It was created in the spirit of the 1988 Seoul Olympics marathon, a race that had brought global attention to Korean distance running on its own streets. By 2001 it had been selected as a national championship race. By 2002 it had grown into a full marathon. It hosted the Asian Marathon Championship in 2004, received IAAF Silver Label Road Race status in 2007 and had attracted 25,000 runners by 2008 — a growth curve that reflected both the rising popularity of mass-participation running in Asia and the race’s ability to position itself as a city centrepiece rather than a suburban time trial.

The rebrand to JTBC Seoul Marathon came when broadcasting company JTBC — part of the same JoongAng media group — took over from JoongAng Ilbo as the primary organiser. The television coverage that came with JTBC’s involvement transformed the race’s public profile: elite highlights and mass participation footage reached national audiences in a way that was previously impossible for a road race in Korea. Alongside the Dong-A Seoul Marathon (March, Platinum Label) and the Daegu Marathon, JTBC consolidated its place in the “Big 3” of Korean marathon racing. Where Dong-A is the serious spring race beloved by time-chasers, and Daegu occupies the regional championship space, JTBC became something different: the aspirational race, the cultural event, the one that younger Korean runners put on their bucket list first.

The 2025 edition — the 25th — marked a structural turning point. Registration moved from a first-come-first-served system to a tiered lottery based on marathon finishing times, making JTBC the first Korean major to adopt this approach. Entry fees rose to record highs. In-person expo pickup became mandatory. The running community grumbled loudly about all three changes and applied anyway in enormous numbers. That tension between affection and frustration is, in its own way, a mark of just how important the race has become. The 26th edition on November 1, 2026 continues that tradition — a race that costs more, demands more and still sells out faster than almost anything else on the Korean running calendar.

How JTBC Seoul Marathon Compares