2026 JTBC Seoul Marathon D-7

Segments

1. 0–5 km · 07:59

   Gwanghwamun Square → Sungnyemun → Eulji-ro U-turn → Gwanggyo

   A downtown stretch full of turns: sharp corners at Sungnyemun (1.4 km) and the Bank of Korea, then a U-turn on Eulji-ro at 3.9 km. It rises gently by about 15 m to 2 km, so hold back while the field is packed.

   +20 m −14 m · 1.4 Sungnyemun Gate (sharp turn) 3.9 Eulji-ro U-turn (Daerim Sangga)
2. 5–10 km · 08:27

   Gwanggyo → Cheonggyecheon-ro (south bank) → Cheonggye 5-ga → Cheonggye 8-ga

   You follow the Cheonggyecheon stream east, dropping about 15 m over 5 km. The stream-side road is one-way and narrow, so don't rush to pass; settle into a rhythm.

   +4 m −18 m · 5.4 Gwanggyo – onto Cheonggyecheon-ro
3. 10–15 km · 08:55

   Gosanja Bridge U-turn → Cheonggyecheon-ro (north bank) → Cheonggye 8-ga → Cheonggye 3-ga

   At 10.4 km you cross Gosanja Bridge to U-turn and come back on the opposite bank. The return climbs slowly, about 15 m over 5 km or so, so keep your effort even.

   +14 m −6 m · 10.4 Gosanja Bridge U-turn (10.2 km in the official table)
4. 15–20 km · 09:24

   Mugyo-dong → Jong-ro 1-ga to 5-ga → Heunginjimun → Sinseol-dong Station

   From 15.7 km Jong-ro runs wide and straight to the east, easing down about 10 m to Sinseol-dong. At 18.4 km the road curves around Heunginjimun Gate, so don't swing wide.

   +7 m −13 m · 15.7 Mugyo-dong – onto Jong-ro 18.4 Heunginjimun (Dongdaemun Gate) 19.9 Sinseol-dong Station – onto Cheonho-daero
5. 20–25 km · 09:52

   Cheonho-daero → Dongdaemun-gu Office → Janghanpyeong Station → Gunja Bridge (Jungnangcheon)

   Past halfway, Cheonho-daero runs south-east, wide, flat and straight. You cross the Jungnangcheon stream on Gunja Bridge at 24.5 km; use this stretch to lock in race pace.

   +14 m −17 m · 24.5 Gunja Bridge (Jungnangcheon stream)
6. 25–30 km · 10:21

   Gunja Station → Neungdong-ro → Konkuk Univ. Station → Jayang junction → Jamsil Bridge

   Turn south onto Neungdong-ro at Gunja Station (25.3 km) and climb about 10 m past Children's Grand Park, then turn east at Konkuk Univ. Station (27.4 km). After one more rise on the bridge approach at 28–29 km, you cross the Han River on the wind-exposed Jamsil Bridge from 29.7 km.

   +16 m −12 m · 27.4 Konkuk Univ. Station junction 29.7 Jamsil Bridge (Han River, ~1.1 km)
7. 30–35 km · 10:49

   Jamsil Bridge south end → Jamsil Station → Seokchon Lake → Samjeon junction → Tancheon Bridge 1

   Off the bridge, Songpa-daero drops about 10 m to Seokchon Lake (32.2 km), where you turn west. It is flat after that, so hold the same pace and save energy to Tancheon Bridge 1 at 34.7 km.

   +10 m −19 m · 32.2 Seokchon Lake 34.7 Tancheon Bridge 1 (Tancheon stream)
8. 35–40 km · 11:17

   Nambusunhwan-ro → Hangnyeoul U-turn → Suseo IC → Yangjae-daero → Garak Market

   U-turn at Hangnyeoul Station by SETEC (35.7 km), then follow Nambusunhwan-ro to Suseo IC (38.6 km). On Yangjae-daero a climb of about 1% runs from 39 km to just past 40 km, so shorten your stride.

   +11 m −9 m · 35.7 Hangnyeoul U-turn by SETEC (35.5 km in the official table) 38.6 Suseo IC – onto Yangjae-daero
9. 40–42.195 km · 11:30

   Garak Market → Bangi Station → Olympic Park junction → Olympic Park finish

   The climb tops out around 41 km and it runs slightly downhill from Bangi Station (41.6 km) to the end. At the Olympic Park junction (42 km) you enter the park, so hold your pace to the line.

   +15 m −11 m · Grade max 2.9% · 41.6 Bangi Station 42.0 Olympic Park junction

Pace

Even-effort splits: slower on climbs, a little faster on descents.

Print pace band

Weather

Prep

Good to know

• The 2026 marathon uses a new course. Until last year it started at Sangam World Cup Park and went via Yanghwa Bridge, Yeouido, Mapo Bridge and Gwanghwamun to Olympic Park. This year it starts at Gwanghwamun Square and finishes at Olympic Park. The 10K is now separate, from Sangam World Cup Park to Yeouido Park. Some blogs still show the old Sangam start.
• Assembly is at 06:30 and the start at 07:30, the same for the marathon and the 10K. The marathon start moved from 08:00 last year to 07:30.
• The start and assembly area is Gwanghwamun Square and the finish is Olympic Park. The organiser says venues may change.
• There are eight start groups, A to H, with group A for sub-3 runners. 65 pacers run from 2:49 to 5:00 across the groups.
• No official cut-off time could be found as of 2026-10-25. Entry requires being able to finish within 5 hours, and the slowest pacer is 5:00.
• Water, sponge and medical positions have not been published, so no aid-station POIs are listed. The organiser only says the water-station system will be strengthened this year. They will be added once the race guide is out.
• Bag drop location and hours have not been published yet.
• Race packs (bib etc.) are not posted; collect them at the Korea Running Expo, SETEC Hall 1 (Hangnyeoul Station exit 1), 29–30 Oct 12:00–20:00 and 31 Oct 10:00–23:00. There is no parking, so use public transport. SETEC sits right at the 35.7 km U-turn.
• On race day, roads close section by section between 05:00 and 13:50 (marathon sections from 07:20). The organiser recommends the subway. Closure times per section are on the official traffic-control page.
• Sunrise on 1 Nov in Seoul is around 06:56 and civil dawn around 06:29 (computed with the NOAA solar algorithm), so it is light at the start.
• The course has three U-turns (Eulji-ro 3.9 km, Gosanja Bridge 10.4 km, Hangnyeoul 35.7 km) and crosses the Han River (Jamsil Bridge) and the Jungnangcheon and Tancheon streams.
• No official GPX or elevation profile exists yet, so the route and elevation on this page are approximate. Its km positions match most intersection km values on the official traffic-control page within 0.1–0.4 km.

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