Racing at Thailand's First Purpose-Built Resort
The Bangsaen42 Marathon offers three distances: 10K, 21.1K and the 42.195K full marathon, at Bang Saen Beach in Chonburi. [1] Bang Saen is genuinely historically significant: in 1943, the Thai government built the country's first purpose-built holiday resort there. [2] The beach itself stretches roughly 2.5km and sits about 108km east of Bangkok, close to both the capital and the larger resort city of Pattaya.
A Beach Named for a Tragic Love Story
The name Bang Saen comes from local folklore about two young Chonburi lovers, Saen and Sam Muk, whose unrequited love led them to throw themselves off a cliff together. [2] Their names became attached to several nearby Chonburi landmarks, including Khao Sam Muk, a low hill near the beach -- giving the race route genuine cultural texture beyond a generic coastal course.
Serious Distances Only
Unlike most races in this research batch, Bangsaen42 offers no category shorter than 10K -- the field spans 10K, 21.1K and the full marathon. [1] That focus signals an event aimed at committed distance runners rather than casual or family participants, similar to the Selangor Marathon's marathon-and-half-only format covered elsewhere in this research.
Organiser and Registration Details Thin
Available research material didn't confirm a specific organiser for this edition. [1] Prospective participants should check the official Bangsaen42 site directly for updates closer to the 15 November 2026 race date.
Should You Run It?
If you want a serious-distance marathon at one of Thailand's most historically resonant beach resorts -- with genuine folklore woven into the local geography -- Bangsaen42 on 15 November 2026 is a strong pick for committed distance runners. Watch official channels for registration to open.