Half marathons in Bangkok 2026–2027
Every upcoming half marathon (21.1 km) in and around Bangkok. Most run in the cool season and start before dawn to beat the heat.
- Oct3100:00Ultra Park Run Thailand 100 ครั้งที่ 7 : 24H Bangkok International Championships 2026 (5K, 10K, 50K, 100KRELAY, 100K and 24H)5K5 km10K10 kmHalf marathon24 kmUltra50 / 100 km
- Dec505:00International Anti-Corruption Day 2026 Run For DadFun run3 km5K5 km10K10 kmHalf marathon21.1 km
- Dec1300:00Sportsmall Half Marathon 20265K5 km10K10 kmHalf marathon21 km
- Dec2000:00Thonburirun#25K5 km10K10 kmHalf marathon21 km
- Jan1000:0037th Bangkok Marathon5K5 km10K10 kmHalf marathon21.1 kmMarathon42.2 km
- Jan1000:0037th Bangkok Marathon (foreigners)5K5 km10K10 kmHalf marathon21.1 kmMarathon42.2 km
FAQ
How many Half marathons in Bangkok 2026–2027 are there?
There are 6 upcoming. The next one is Ultra Park Run Thailand 100 ครั้งที่ 7 : 24H Bangkok International Championships 2026 (5K, 10K, 50K, 100KRELAY, 100K and 24H) on 31 October 2026.
Which months have races?
Upcoming races fall in October 2026, December 2026, January 2027.
How do I register?
Open a race for its details and registration link. Most Bangkok races register online through race.thai.run or Runlah, and popular ones sell out weeks in advance.
Before race day, read our Bangkok race guide and find a run club to train with.