Course & Elevation
The Bangkok Marathon is a marathon in the Phra Nakhon district of Bangkok, Thailand, with the start and finish beside the Grand Palace on Sanam Chai Road. The first edition was run in 1987 as the Royal Marathon, in honour of the king's 60th birthday, and the National Jogging Association of Thailand has organised the race since 1988. The date has changed over the years: past editions were held in November and in some years in February, and the 2027 edition is scheduled for January. The marathon starts at 00:30, after runners gather on Sanam Chai Road from 23:00, and the roads are closed from 22:00. A half marathon, a 10K and a 5K run on the same morning, starting at 03:00, 04:30 and 05:00. The start and finish are at the same place and the route is AIMS-certified. The cut-off for the marathon is 6 hours 30 minutes, with the half marathon at 4 hours, the 10K at 2 hours 30 minutes and the 5K at 2 hours. A separate race, the Amazing Thailand Marathon Bangkok, is held in the city in late November and is run by a different organiser.
Course Facts
Weather
Typical climate for the race month — an estimate, not a forecast or a race-day record
27°C
Temperature
68%
Humidity
6%
Rain Chance
January in Bangkok is hot but dry: average highs are around 33°C, lows around 23°C, and rain falls on only about two days of the month. The marathon starts at 00:30, long before the daytime heat.
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