Bangkok's Two Big Marathons — November vs December
Twice a year, Bangkok empties its streets for runners. The Bangkok Marathon in November and the Amazing Thailand Marathon Bangkok in December — which one to pick, and why.
Running a marathon in Bangkok almost always means running one of two races: the Bangkok Marathon in November or the Amazing Thailand Marathon Bangkok (ATMBKK) in December.
Both start between 2 and 3 in the morning. The reason is simple — Bangkok's midday temperature in November and December still passes 33°C, and humidity sits at 70%. You can't actually race during the day. So Bangkok invented a genre that doesn't really exist anywhere else: the middle-of-the-night city marathon.
1. Bangkok Marathon (Standard Chartered Bangkok Marathon)
1987 — one event that started everything
The Bangkok Marathon began as King Bhumibol's 60th birthday tribute. In 1987, a one-off event called the Royal Marathon was held across the Rama IX Bridge — and that single day triggered Thailand's running boom. It became an annual fixture the following year, and is now the oldest race in the city.
The 2025 edition ran on Sunday, November 16. The 2026 edition is expected on the third Sunday of November.
The course — a line drawn across the tourist map
The race's biggest asset is its start and finish: Sanam Chai Road, directly in front of the Royal Grand Palace.
What a full-marathon runner passes through:
- Royal Grand Palace
- Wat Phra Kaeo (Temple of the Emerald Buddha)
- National Museum
- Chao Phraya riverside
It looks like someone opened a guidebook and drew a line through the postcards. Most first-time Korean runners say the same thing afterwards: "This is the first time I actually saw the city."
Sanam Chai Road (Bangkok Marathon start/finish)
In front of the Royal Grand Palace. BTS doesn't reach here — 10 min walk from Sanam Chai MRT.
The truth about the 2 AM gun
Full marathon starts around 2 to 3 AM, half at 4, 10K at 5. You finish the hard part of the course before sunrise.
When you hear that for the first time you ask "what about sleep?" In practice — you sleep after lunch the day before, wake around 10 PM, and start prepping. You deliberately invert your day. Once you're on the start line, the strangeness disappears. Ten thousand runners with headlamps moving past Wat Pho is a scene that doesn't exist in any other city.
Character — a historical, traditional city marathon
Standard Chartered has been the title sponsor for years. The atmosphere is more classical than festival-like — the oldest marathon on the oldest roads in this city.
If it's your first marathon in Bangkok, this is the one to put on the shortlist.
2. Amazing Thailand Marathon Bangkok (ATMBKK)
A race built by the Tourism Authority
ATMBKK is a different animal. Organized directly by the Tourism Authority of Thailand (TAT), with Toyota as the headline sponsor — currently the largest road race in Thailand.
Held in early December (2026 edition: Sunday, November 29), with four distances:
- Full (42.195K) — gun at 2:00 AM
- Half (21K) — gun at 2:00 AM
- 10K — gun at 5:45 AM
- 4.5K Family Run — gun at 6:30 AM
Numbers that make the difference
| Item | ATMBKK |
|---|---|
| Runners | 30,000+ |
| Spectators (race weekend) | 75,000+ |
| World Athletics label | Bronze (since 2020) |
| AIMS member | Since 2021 |
It's bigger than the Bangkok Marathon. The World Athletics label matters — it means official record certification. This is the race you run if you want a Boston Qualifier or an NYRR-recognized time.
Course — redesigned in 2024
The start and finish moved in 2024.
- Start: MBK Center (the heart of the Siam shopping belt, BTS National Stadium)
- Finish: Sanam Luang (the open plaza next to the Royal Grand Palace)
If the Bangkok Marathon is "start at the palace, return to the palace," ATMBKK is "start in the shopping core, finish at the palace plaza." The sunrise hits you somewhere between 6 and 7 AM — usually right as you cross the line.
Kipchoge shows up every year
ATMBKK's other weapon — since 2024, Eliud Kipchoge has been a TAT ambassador and visits Bangkok every year for the race. There aren't many marathons where a recreational runner can casually share the same course with the marathon world-record holder.
Even non-elite full-marathon entrants get unusual access: pre-race talks, photos, signings.
Character — an internationally certified racing marathon
Festival atmosphere + official record certification + global runner influx. ATMBKK is not "the race you fly to in order to see Bangkok" — it's "the race you fly to once you've already seen Bangkok and want a time on the board."
Which one to pick
| Criteria | Bangkok Marathon (Nov) | ATMBKK (Dec) |
|---|---|---|
| First marathon in Bangkok | Recommended | Possible |
| Time chase (BQ / NYRR) | Not recommended (no label) | Recommended |
| Tourist-postcard course | Best (palace start) | Strong (MBK start) |
| Size / festival energy | Medium, traditional | Large festival |
| Dawn temperature | ~27°C | ~25°C |
| Course flatness | Average | Flat |
| Elite access | Low | Kipchoge appears |
One-line picks
- First-time Bangkok runner → November's Bangkok Marathon
- Mid- to advanced runner chasing a PB → December's ATMBKK
- Runner who visits Bangkok often → both in one season: sightsee in November, race for time in December
Logistics
Registration
- Bangkok Marathon: registration usually opens in June and closes in September. Full marathon entry fee around 1,500–2,000 THB (~USD 45–60).
- ATMBKK: opens July–August, fills fast (especially the full). Full marathon entry around 1,800–2,500 THB plus a foreign-runner surcharge. Earlier you register, lower the price.
Hotels
For both races, stay within a 30-minute walk of the start line. Don't try to call a Grab at 1 AM — the road closures around the start make drop-offs impossible once they're in effect.
- Bangkok Marathon → Old Town (Rattanakosin) or Khao San hotels
- ATMBKK → Siam / Phaya Thai (walking distance to MBK)
Bag drop
Both races run official bag drops near the start. The key — bring as little as possible from your hotel. One plastic bag's worth, nothing more. Lost items are reported every year.
Recovery
Gun at 2 AM → finish around 7 AM → go back to the hotel and sleep. Sleep through to lunch — that's the correct plan. The post-race fuel should be what you bought Saturday evening: fruit and coconut water.
Save the massage for the following evening. A traditional Thai massage on the morning after a marathon is just compressing already-damaged muscle. Go with oil instead.
Closing
Together these two races define a genre — the tropical-city midnight marathon. Pick either, and the experience of standing on a start line at 2 AM is one worth having at least once.
This city empties its roads on two Sunday dawns, in November and December. Take one of them.
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